As an airplane taxies on the runway with a speed of 16.5 m>s,a flight attendant walks toward the tail of the plane with a speed of 1.22 m>s. What is the flight attendant’s speed relative to theground?

Q: A secret agent skis off a slope inclined at θ = 29 degrees below horizontal at a speed of v0 = 19.5…

A: Given: slope θ = 29o. speed of an agent vo = 19.5 m/s height h = 18.8 m

Q: In a rectangular field of sides 60m and 80m respectively two farmers start moving from the same…

A: The speed of a body is the distance it travels in a given amount of time. Mathematically we have…

Q: Within the jet stream, a plane flies 170_m/s at 27° South of West. The jet stream itself is moving…

A:

Q: A fire fighter 32.0 m away from a building, directs a stream of water from a fire hose at an angle…

A: Given that, The initial position of the person, xi is 0 m. The final position of the person, xf is…

Q: A fireman d = 49.0 m away from a burning building directs a stream of water from a ground-level fire…

A: Given,

Q: A train moves towards east with 95 km/h, while a car moves towards north with 60 km/h. What is the…

A:

Q: man Can swim ab as Peed of 3km/he in still water he wants to cross 500 m wid river flowing at be an…

A: Given:             man speed, vm=  3 km/h             river width, d=500 m= 12km            river…

Q: falls for 6 seconds before reaching the bottom. How high above the bottom is the cliff? a. 123.22 O…

A: Part (I): Given: The time taken by the object to reach the ground is 6 s. The initial speed of the…

Q: A cannonball is launched from ground level with an initial speed of v0 straight up in the air What…

A: Given,  Initial speed of the cannon ball, vo The speed of the cannon ball when it reaches height h…

Q: The velocity of an airplane in a strong wind is 150 m/s. Which of the following explanations is…

A: Given  Velocity  of  airplane in strong wind  or resultant speed   150 m/s . Therefore,  Vres = 150…

Q: ne object is fired at an angle of ten degrees above the horizontal. A second object is fired at an…

A: Let all the objects thrown with the same magnitude of velocity = u First object is fired at an angle…

Q: A swimmer is crossing a river at a speed of 1.5 m/s due west. The river’s current is 2.0 m/s due…

A: Speed of swimmer = 1.5 m/s (west) Speed of river's current = 2 m/s (south) Speed of swimmer with…

Q: 20. The net displacement of the body is a) 80m b) 160 m c) 120m d) zero 21. Total distance covered…

A: Problem can be solved via Newton's law of Motion.

Q: A boat is traveling upstream in the positive direction of the x axis at 15 km/h with respect to the…

A: Given: A boat is traveling upstream in the positive direction of the x axis at 15 km/h with respect…

Q: A bomb dropped from a plane flying horizontal at a constant speed and at an altitude of 525 m…

A: y=Displacement in y axis=525 mx=Displacement in axis=2350 may=g=Acceleration due to gravity=9.81…

Q: diver jumps from a boat and descends to a depth of 20m. she skirts a coral reef and estimates that…

A: diver jumps from a boat and descends to a depth of 20m. she skirts a coral reef and estimates that…

Q: A swimmer in a river is chatting with a friend who is on the river bank. If the river current is…

A: 0.339 mph to the west. (Last option)

Q: A swimmer heading directly across a river 200 m wide reaches the opposite bank in 1 min 40 s. She is…

A: Given : Width of the river  d=200 m Time taken to reach at the other end of the river t=1 min 40…

Q: A swimmer in a river is chatting with a friend who is on the river bank. If the river current is…

A:

Q: Within the jet stream, a plane flies 200 m/s at 18° South of West. The jet stream itself is moving…

A:

Q: A skydiver jumped out of a plane to shoot a skydiving scene for a certain spy movie. At what point…

A: Given,h1=911.12 mh2=497.02 mS=h1-h2   =414.1

Q: A boat is aimed at the opposite shore of a 324.06 m wide river and rowed at a speed of 4.02 m/s…

A: Resultant of two vector perpendicular to each other is  R = √(A2 + B2)  Where A is the magnitude of…

Q: A .43 kg soccer ball is kicked with an initial speed of 25 m/s at an angle of 42 degrees above the…

A:

Q: An open water tank 80cm high, 120cm long, and 50cm wide is to be transported. The acceleration is…

A:

Q: Two boats are heading away from shore. Boat 1 heads due north at a speed of 3.16 m/s relative to the…

A: Given: The velocity of boat 1 relative to shore is V1s = 3.16 m/s. The velocity of the boat 2…

Q: A skydiver jumped out of a plane to shoot a skydiving scene for a certain spy movie. At what point…

A: let t be the time to open the parachute.

Q: A person is walking north on a sidewalk at about 3.25 mph. At the same time the wind is blowing from…

A: person is walking in the direction of north with speed of 3.25 mph wind is blowing in the direction…

Q: You want to swim straight across a river that is 76m wide. You find that you can do this if you swim…

A: Given that , width of river = 76 mθ=28°v = 1.5 m/sLet the speed of swimmer to the ground is equal to…

Q: A skydiver jumped out of a plane to shoot a skydiving scene for a certain spy movie. At what point…

A: Given   Initial height H1= 4435.43 mHeight at which parachute should be opened H2= 206.83 m

Q: A SAFETY VALVE OF THE AMBUKLAO DAM IN BENGUET RELEASES WATER HORIZONTALLY WITH A VELOCITY OF 15 m/s.…

A: Given(s): The water is released horizontally. The horizontal velocity of the water, vx=15 m/s It…

Q: 50 40 30 20 10 -10 10 20 30 10 You are a lifeguard and spot a drowning child 30 meters along the…

A: Given data: A drowning child distance along the shore is, d1 = 30 m A drowning child distance from…

Q: The water in a river flows downstream at 3.0 m/s. A boat is motoring upstream against the flow at…

A: To determine the boat’s speed relative to the riverbank,

Q: In what direction should an airplane fly in order to fly due north at 320 kph if the wind is blowing…

A: By relative motion Vpa = Vp - Va = 320j -50i  Angle = tan-1(50/320)  = 8°53'  N 8°53' w

Q: A bicycle traveling at a speed of 19 km/h passes a person running at a speed of 8 km/h. From the…

A:

Q: An open water tank 80cm high, 120cm long, and 50cm wide is to be transported. The acceleration is…

A: Height, length, wide 80cm, 120cm, 50cm  Acceleration is 3m/s2 along width

Q: A secret agent skis off a slope inclined at θ = 31.5 degrees below horizontal at a speed of v0 =…

A:

Q: A person is walking north on a sidewalk at about 3.30 mph. At the same time the wind is blowing from…

A:

Q: The speed of a boat in still water is 4 kmph while its speed against the stream is 2 kmph. What is…

A:

Q: A skydiver jumped out of a plane to shoot a skydiving scene for a certain spy movie. At what point…

A: GIven data The initial position of the skydiver in the plane is di = 3428.63 m. The final position…

Q: A ship is sailing north at speed 10m/s. A submarine detects the ship when 2 km due East of the ship…

A:

Q: I threw a rock into a quarry horizontally 30 m/s. The quarry was 80 meters deep. How far did it go…

A: It is given that

Q: An airplane left an airport and flew 105 mi in the direction of North 50.4000 deg E, then turned and…

A:

Q: a fireman d=31.0 m away from a burning building directs a stream of water from a ground-level hose…

A:

Q: A plane departs from Toronto and heads to Ottawa travelling at 529.9 km/h [N33.67°E, relative to the…

A:

Q: One strategy in a snowball fight is to throw a snowball at a high angle over level ground. While…

A: Solution:   Given Values, Initial Speed of the ball (u)= 32.1 m/sThe angle of projection (θ)=57°

Q: A fireman d = 32.0 m away from a burning building directs a stream of water from a ground-level fire…

A: Time of flight is,

Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.