Which of the following combinations results in a positive displacemnt of an object's position? and why ?

Q: 41. Average velocity. In t seconds, an object dropped from a certain height will fall s(t) feet,…

A: Given Data: The height is given by, st=16t2. (a) The values of s(5) and s(3) can be calculated as,…

Q: Q4: A car is accelerated from rest to a velocity of 75 km/h over a distance of 2500 m. (a) How long…

A: The given data are: u=0 m/sv=75 km/h=20.833 m/ss=2500 m Here, u denotes the initial velocity, v…

Q: An object starts at position 1 with velocity v1. It speeds up in the positive direction until it…

A:

Q: A speedboat moving at 34.0 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the…

A: Hi. as you have posted multiple questions and not specified which question needs to be solved, we…

Q: A helicopter carrying Dr. Evil takes off with a constant upward acceleration of 5.0 m/s2. Secret…

A: Motion of an object in a straight line can be explained easily with some standard relations. If we…

Q: straight up into the air with an initial velocity of 40 meters/sec.  How much time does it take…

A: GivenInitial velocity of ball, u=40 m/s

Q: 4. The velocity of an object is shown at an initial (i) and final () time. You may assume that the…

A: The acceleration is defined as a = (vf - vi)/t

Q: A truck on straight road starts from rest and accelerates at 4 m/s2 until it reach a speed 20 m/s.…

A:

Q: 3. A jet lands on an aircraft carrier at 63 m/s. (a) What is its acceleration (assumed constant) if…

A:

Q: Position, Displacement and Velocity 13. A balloon drifts 140 m toward the west in 45 s; then the…

A: There are two types of quantities, namely vectors and scalars. Vectors need two values ie. magnitude…

Q: Q2/ A body moving with constant acceleration covers the distance between two points 180 m apart in 6…

A: The given data are: d=180 mt=6 sv=45 m/s Here, d denotes the distance, t denotes the time, and v…

Q: Assume that an MX missile goes from rest to a suborbital velocity of 4.50 km/s in 50.0 s (the actual…

A: Given data *The given initial velocity is u = 0 m/s *The given final velocity is v = 4.50 km/s =…

Q: A driver in a moving car applies the brakes. The car slows to a final speed of 3.20 m/s over a…

A: The final speed of the car, v=3.20 m/s The distance covered by the car, S= 40 m The time taken by…

Q: s. Calculate average velocity and speed of the driver. 4. Using V-t graph derive equations of motion…

A: Answer no 4   using v-t graph to derive equation of motion  a) v = u +at  b) v2 = u2 + 2as

Q: 1. Two riders, Lester and Micko, are travelling in the same direction. Micko is speeding at a…

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Q: A speedboat moving at 32.0 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the…

A: Given data: Initial velocity of speedboat is, u=32.0 m/s. Distance covered is, s=100 m. Acceleration…

Q: A ball is thrown vertically upward with a speed of 19.0 m/s. (a) How high does it rise? (b) How long…

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Q: A ball is tossed straight up in the air with an initial velocity of 25 m/s. Answer the questions…

A: Given information: The initial velocity of the ball (u) = +25 m/s (upwards) The acceleration due to…

Q: Q2: A long freight train travelling at 120 km/h (towards the east on a straight track) needs a…

A: According to the Newton's laws of motion , the deceleration of the train is calculated by using the…

Q: How long did the ball take to return to the juggler’s hand?

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Q: A derrick boat approaches a two mile marker 100m ahead at a velocity of 28.5 m/s . The pilot reduces…

A: Given,

Q: An object has a negative acceleration of 4.00 m/s² .It passes point A with velocity v and point B…

A: Acceleration "a" = -4m/s² Distance between a and b point "s" = 100 m . initial velocity  = v  Final…

Q: A speedboat moving at 34.5 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the…

A:

Q: Q2: A long freight train travelling at 120 km/h (towards the east on a straight track) needs a…

A:

Q: 10. Describe a situation in which an object's speed is constant but its velocity is not. 11. (a)…

A: We are going to define a situation  of having speed is constant but velocity is not.

Q: acceleration of 8. You throw a ball vertically upward so that it leaves the ground with velocity…

A: SOlution: Given that  The ball is thrown verticlaly upward vi = 5 m/s

Q: Q1. A truck driving on a paved road is capable of decelerating at a constant value of 5 m/s². (a) If…

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Q: 2. The graph below shows the position function of a bus during a 15-min trip. D H 5 10 15T a) What…

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Q: A helicopter carrying Hiro takes off with a constant upward acceleration of [5.0 m/s 2]. Secret…

A: GIVEN : FOR HELICOPTER'S MOTION :  Acceleration a=5.0 m/s2 Time t= 10 s FOR POWER AGENT : Upward…

Q: A speedboat moving at 34.0 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the…

A:

Q: A high-performance sports car can go from 0 to 100 mph (44.7 m/s) in 7.8 s. (Assume the car travels…

A:

Q: A speedboat moving at 35.0 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the…

A: Answer: a) 3.53 s  b) 21.59 m/s

Q: 28. A cyclist rides 8.0 km east for 20 minutes, then he turns and heads west for 8 minutes and 3.2…

A: Given data:     The first distance towards east  is: d1 = 8 km = 8000 m The time required to cover…

Q: A helicopter carrying Dr Evil takes off with a constant upward acceleration of 5 m/s2. A secret…

A: a). The maximum height the helicopter reaches is 122.5m b). The distance above the ground power is…

Q: A coconut was dropped from the top of a 10-m high coconut tree. (a) How long will it take the…

A:

Q: 17. You are bicycling along a straight north-south road. Let the x-axis point north. Describe your…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: A speedboat moving at 30.0 m/s approaches a no-wake buoymarker 1.00 x 102 m ahead. The pilot slows…

A: Let u be the initial velocity of the speedboat, a be the acceleration, v be its final velocity, s be…

Q: Q19: A ball is thrown straight up in the air. For which situ- ation are both the instantaneous…

A: Required : In which case the instantaneous velocity and the acceleration are zero.

Q: 1. If some dude’s position is ~x = −10 m and the dude is moving away from the reference point, but…

A: Given, dude's initial position ~x = −10m He is moving away from the reference point , so…

Q: 2. Danielle throws a ball vertically upwards with an initial velocity of 24.5 ms', and catches it is…

A: Given: The vertical speed of the ball u = 24.5 m/s a) formula used: v = u + at v is the final…

Q: A peregrine falcon drops from rest off the top of the Stantec Tower, which is 250.8 m tall. It…

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Q: (i) Why the value of acceleration is always positive regardless of the direction of the block…

A: i) The acceleration of the block is always positive whether the block is moving up and going down…

Q: 7. Sketch a velocity-time graph for Donna's Mercedes which accelerated uniformly for 0 mi /hr to 70.…

A: QUE . 7(a) GIVEN:      Intial velocity = u = 0 mi/hr                    Final velocity = v = 70…

Q: 2A) starts from rest and accelerates continuously at a rate of 4.14 m/s² when the rocket is lit,…

A: Given, Distance between from tall cliff=7.30 m acceleration =4.14 m/s^2 let velocity of toy car when…

Q: A stone is dropped from rest from the top of a high-rise. It takes △t = 2.6 s for it to reach the…

A: Given data:  A stone is dropped from rest Time taken (Δt) = 2.6 s Required: Initial velocity (Vi),…

Q: A motorcyclist heading east through a small town accelerates at a constant 4.0 m/s2 after he leaves…

A: Given that Initial position at t = 0 is X0 = 5.0 m east Acceleration is a = 4 m/s2 Initial velocity…

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.