A 70 kg skater, at rest on frictionless ice, tosses a 8.0 kg snowball with velocity by ú = 53.0i + 14.0j m/s, where the r- and y- axes are in the horizontal plane.
Q: A baseball of mass m1 = 0.46 kg is thrown at another ball hanging from the ceiling by a length of…
A: m1 = 0.46 kg m2 = 0.76 kg L = 1.75 m v1 = 3.5 m/s (in +x direction) v1f = 0 m/s v2 = 0 m/s
Q: The superheroine Xanaxa, who has a mass of 63.5 kg, is pursuing the 74.3 kg archvillain Lexlax. She…
A: Mass of the super heroine m=63.5 kg When she dives off from the building the change in height is…
Q: A small block of mass m 1 = 0.500 kg is released from rest atthe top of a curved wedge of mass m 2…
A: Given:Mass of block m1 = 0.5 kgMass of the wedge m2= 3 kgVelocity of the mass m1 after it leaves the…
Q: 31. ssm Batman (mass = 91 kg) jumps straight down from a bridge into a boat (mass = 510 kg) in which…
A: It is given that,
Q: 15) A mass of 4.0 kg, initially at rest on a horizontal frictionless surface, is struck by an object…
A:
Q: A 75-kg fisherman in a 125-kg boat throws a package of mass m = 15 kg horizontally toward the right…
A: Apply conservation of momentum to boat fisherman-package system,
Q: A cube of M 3.00 kg slides down a frictionless incline, and elastically strikes another cube m =1.30…
A: Speed of mass M at the bottom of the incline Kf+Uf=Ki+Ui12mu12+0=0+mghu1=2gh=29.8 m/s235.0 cm10-2 m1…
Q: Block 1, with mass m1 and speed 5.2 m/s, slides along an x axis on a frictionless floor and then…
A: a)The expression from conservation of momentum,
Q: Three skydivers are plummeting earthward. They are initially holding onto each other, but then push…
A: Since initially, the skydivers plummet earthward, that is, the motion is vertically downward, their…
Q: A baseball (m = 152 g) approaches a bat horizontally at a speed of 43.6 m/s (97.6 mi/h) and is hit…
A:
Q: baseball (m = 149 g) approaches a bat horizontally at a speed of 40.3 m/s (90 mi/h) and is hit…
A: Given data: mass of the ball m = 0.149 kg initial speed u = 40.3 m /s Final speed v = -50.0 m/s…
Q: Emma and Katie are racing along in their new wagon. Upon reaching the bottom of the hill traveling…
A: Given Katie speed at the bottom of the hill = u = 13.2 m/s Distance between Katie and her teddy bear…
Q: A 48.9 g bullet strikes and becomes embedded in a 1.52 kg block of wood placed on a horizontal…
A: Let speed of block after bullet embedded is v Now, by work energy theorem Kf - Ki = Wf 0 -…
Q: An open train car, with a mass of 2190 kg, coasts along a horizontal track at the speed 2.17 m/s.…
A: Let us calculate the car speed v, as shown below:
Q: To get off a frozen, frictionless lake, a 65.0-kg person takes off a 0.150-kg shoe and throws it…
A:
Q: B SSM Batman (mass = 91 kg) jumps straight down from a bridge into a boat (mass = 510 kg) in which…
A:
Q: Ball A (ma = 1.200 kg) strikes ball B (mg = 1.200 kg) which is initially hanging from an extensible…
A:
Q: Two blocks (m1 and m2) are each released from rest at a height of h = 3.83 m on a frictionless track…
A: Masses m1 and m2 are 2.5kg and 4.25kg Released from h= 3.83 m
Q: 56. mmh A baseball (m = 149 g) approaches a bat horizontally at a speed of 40.2 m/s (90 mi/h) and is…
A: Given:- mass of baseball=149g speed of baseball-40.2m/s time=1.10ms
Q: A 0.145-kg baseball is dropped from rest. If the magnitude of thebaseball’s momentum is 1.55 kg #…
A:
Q: two blocks (m1 and m2) are each released from rest at a height of h = 3.98 m on a frictionless track…
A:
Q: In the figure, block 1 of mass m1 slides from rest along a frictionless ramp from height h = 6.00 m…
A:
Q: 107.5-kg rugby player is initially running at 8.5 m/s in the positive direction, but collides…
A:
Q: A 70 kg skater, at rest on frictionless ice, tosses a 8.0 kg snowball with velocity by 53.0i + 14.0j…
A: Momentum is given by Momentum = mass x velocity
Q: A two-stage rocket moves in space at a constant velocity of + 4310 m/s. The two stages are then…
A:
Q: A 70-kg fisherman in a 120-kg boat throws a package of mass m = 15 kg horizontally toward the right…
A:
Q: A 2 kg block is moving at v = 3 m/s along a frictionless table and collides with a second 2 kg block…
A:
Q: A 3.00-g bullet is fired horizontally into a 10.0-kg block of wood suspended by a rope from the…
A: Given that:Mass of bullet, m=3.00 gMass of block, M=10.0 kg=10000 gHeight of the system after…
Q: A 0.507-kg ball, initially moving with a speed of 3.49 m/s, bounces off a wall and then moves with a…
A: Initial speed of ball, Vo= 3.49 m/s Final speed of ball, V = half of Vo Time of contact of ball with…
Q: Ball A (ma = 0.800 kg) strikes ball B (mg = 0.800 kg) which is initially hanging from an…
A: Mass of ma =0.8kg Mass of mb = 0.8kg Velocity of A vA1= 1.5m/s Collision is perfectly elastic
Q: "A railroad car, of mass 200 kg, rolls with negligible friction on a horizontal track with a speed…
A:
Q: A skater of mass 72.5 kg initially moves in a straight line at a speed of 4.80 m/s. The skater…
A:
Q: A 0.19kg baseball is pitched at 42m/s is struck by the bat with an average force of 700 N, which…
A: Consider a ball of mass m is moving toward the left side with the speed v1 is struck by the bat with…
Q: A hockey player with a mass of M = 72 kg, standing on ice, pushes a plate with a mass of m = 0.5 kg…
A: Given information Mass of the hockey player M=72 kg. Mass of the plate m=0.5 kg. Velocity of the…
Q: A 105-kg rugby player is initially running at 7.5 m/s in the positive direction, but collides…
A:
Q: At the center of a 50 m -diameter circular ice rink, a 75 kg skater traveling north at 2.5 m/s…
A:
Q: A baseball of mass m1 = 0.31 kg is thrown at another ball hanging from the ceiling by a length of…
A:
Q: Two blocks with mg =2 kg and mg = 4 kg are moving with vR = 2.5 m/s and vg = 3 m/s in positive z and…
A: Given : mR = 2 kg mB = 4 kg vR = 2.5 m/s vB = 3 m/s
Q: A boy cruising across a smooth, level sidewalk is approaching a pipe guard-rail. It seems like a…
A:
Q: 0.2 kg are located on a horizontal frictionless path, which has a lower and a higher part with…
A:
Q: In assembling a train from several railroad cars, two of the cars, with masses 2.0 x 10^4 kg and 4.0…
A:
Q: Block 1, with mass m1 and speed 3.8 m/s, slides along an x axis on a frictionless floor and then…
A: The masses are m1 and 0.34m1 The initial speed of m1 is u1=3.8 m/s The initial speed of m2 is u2=0…
Q: A wood block of mass mw = 200 g is projected from the ground at a speed vo= 35 m/s and at an angle…
A: Given: The mass of wooden block mw = 200 g. Projectile speed of wooden block vo = 35 m/s. Angle of…
Q: Block 1, with mass m1 and speed 4.0 m/s, slides along an x axis on a frictionless floor and then…
A:
Q: A baseball (m = 148 g) approaches a bat horizontally at a speed of 40.7 m/s (91.1 mi/h) and is hit…
A: The impulse is average force that the bar exerts on the ball and change in time to contact.
Q: An open train car, with a mass of 2050 kg, coasts along a horizontal track at the speed 2.792.79…
A: If the net external forces acting on the system add up to zero, then the linear momentum of system…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- A space probe, initially at rest, undergoes an internal mechanical malfunction and breaks into three pieces. One piece of mass ml = 48.0 kg travels in the positive x-direction at 12.0 m/s, and a second piece of mass m2 = 62.0 kg travels in the xy-plane at an angle of 105 at 15.0 m/s. The third piece has mass m3 = 112 kg. (a) Sketch a diagram of the situation, labeling the different masses and their velocities, (b) Write the general expression for conservation of momentum in the x- and y-directions in terms of m1, m2, m3, v1, v2 and v3 and the sines and cosines of the angles, taking to be the unknown angle, (c) Calculate the final x-components of the momenta of m1 and m2. (d) Calculate the final y-components of the momenta of m1 and m2. (e) Substitute the known momentum components into the general equations of momentum for the x- and y-directions, along with the known mass m3. (f) Solve the two momentum equations for v3 cos and v3 sin , respectively, and use the identity cos2 + sin2 = 1 to obtain v3. (g) Divide the equation for v3 sin by that for v3 cos to obtain tan , then obtain the angle by taking the inverse tangent of both sides, (h) In general, would three such pieces necessarily have to move in the same plane? Why?4. A 63kg astronaut is on a spacewalk when the tether line to the shuttle breaks. The astronaut is able to throw a spare 10kg oxygen tank in a direction away from the shuttle with a velocity of 12m/s, propelling the astronaut back to the shuttle. Assuming the astronaut and tank started at rest, what is the astronaut's final velocity after throwing the tank? GU E 99+ SI1. A ball having 500.0 g hits wall with velocity 10.0 m/s. Wall applies to the ball and it turns back with velocity 8.0 m/s. Find the 5000.0 N for time of ball-wall contact. 2. A projectile is launched at 40° to the horizonal with initial speed 15 m/s. Determine the maximum height reached. (assume g = 9.81 m/s²)
- The green marble (m1= 2.6 kg) was in head-on collision to red marble (M2-8.2kg). Before the collision, the velocities are 7m/s and 5 m/s for the green and red marble respectively. The two marbles move together after the collision, find the final velocity. MI Vli Vf V2i (m/+m2) m2A 0.450 kg hammer is moving horizontally at 9.00 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. a. Calculate the duration of the impact in seconds. b. What was the average force in newtons exerted on the nail? _______ NTwo beads are sliding freely on a horizontal rod. Use the following conditions. m₁ = 3 kg mg = 1 kg e=0.9 VA= 1 m/s Va = -3 m/s a. Determine the final velocity of both beads. b. Determine the average interaction force, F between the beads if the duration of the impact is 0.005 seconds VB MA ma
- a)If Olaf catches the ball, with what speed vf do Olaf and the ball move afterward? Express your answer numerically in meters per second. b) If the ball hits Olaf and bounces off his chest horizontally at 8.30 m/sm/s in the opposite direction, what is his speed vf after the collision? Express your answer numerically in meters per second.1. For the purposes of this problem make sure you remember that the positive x direction is to the right. A 0.500 kg crash cart was rolling to the left at &; = -1.00 m/s. It was hit with a rubber hammer. Just afterwards the cart was rolling to the right with Uf = +2.50 m/s. The hammer was in contact with the cart for only 5.00 milliseconds. Remember to specify the direction in your answers as either postive or negative. (a) What is the change in momentum, Ap, for the cart? (b) What is the Impulse, I, applied by the hammer to the cart? (c) What is the average force, F, applied by the hammer to the cart? +x X+ Vf +XA. If you catch the ball, with what speed do you and the ball move afterwards? B. If the ball hits you and bounces off your chest so that afterward it is moving horizontally at 8.25 m/s in the opposite direction, what is your speed after the collision?
- The green marble (ml= 1.2 kg) was in head-on collision to red marble (M2=8.7kg). Before the collision, the velocities are 7m/s and 5 m/s for the green and red marble respectively. The two marbles move together after the collision, find the final velocity. m1 m2 Vli V2i Vf (m1+m2) Select one: a. -3.5100 m/s O b. HIP HIP Oc. HURRY O d. 3.5100 m/sYou are standing on a large sheet of frictionless ice and holding a large rock. In order to get off the ice, you throw the rock so it has velocity 12.0 m/s relative to the earth at an angle of 35.0∘ above the horizontal. Your mass is 77.0 kg and the rock’s mass is 3.00 kg. a) What is your speed after you throw the rock?An object has a kinetic energy of 275 J and a linear momentum of magnitude 25kg m/s. Find the mass of the object (in kg). Ο Α. 1.14 O B. 0.89 ОС. 5.5 O D. 7