A ball with an initial velocity of +15 m/s rolls up to the top of a ramp and back down again. At the bottom of the ramp it has a velocity of -15 m/s. The acceleration of the ball is -4.0 m/s 2 during the entire event a) How long does it take for the ball to roll up and back? b) What is the velocity of the ball at the highest point on the ramp?

Q: A car is traveling at a constant velocity of magnitude vo when the driver notices a garbage can on…

A: Explanation: Velocity =Displacementtime v0 is the velocity  d1 is the distance moved by the car…

Q: Objects in free fall on the earth have acceleration ay = -9.8 m/s2. On the moon, free-fall…

A:

Q: A bolt drops from the ceiling of a train car that is accelerating northward at a rate of 2.05 m/s2.…

A: Given that: Acceleration of car relative to earth: a→CE=2.05 j^  m/s2

Q: I am driving at 35 mph on a foggy day when I see a car 5 miles ahead of me stopped in the road with…

A: Given  Maxximum decelaration of car is 12 mph/s = 43200 mile/h² Distance of car initialy = 5 miles.…

Q: A jeepney and a train are moving together along parallel paths at 30.0 m/s, with the jeepney…

A: Solution:→Case 1     For the jeepney     Initial speed, u = 30 m/s     Acceleration, a = -2.5 m/s2…

Q: A 50.0-g Super Ball traveling at 30.0 m/s bounces off a brick wall and rebounds at 21.5 m/s. A…

A: The initial velocity of the ball, v0=-30.0 m/s (negative because it is directed opposite to the…

Q: A potato is launched vertically upward with an initial velocity of 131 ft/s from a potato gun at the…

A:

Q: You are standing at rest at a bus stop. A bus moving at a constant speed of 5.00 m/s passes you.…

A:

Q: A golf ball rolls up a hill toward a miniature-golf hole. Assume that the direction toward the hole…

A:

Q: driver in a moving car applies the brakes. The car slows to a final speed of 1.70 m/s over a…

A: This problem can be solved by using first and third equation of motion which is given as v = u + at…

Q: with the velocity of 25 m/s after time t=60sec what is the final velocity when the acceleration of…

A: The initial velocity of the car is v = 25 m/s  The time t = 60 sec  The acceleration of the car is a…

Q: Objects in free fall on the earth have acceleration ay = -9.8 m/s2. On the moon, free-fall…

A:

Q: After a big snowfall, you take your favorite rocket‑powered sled out to a wide field. The field is…

A: distance (d) = 221 m Acceleration (a) = 3.95 ms2Initial velocity (u) = 0 m/s

Q: True or False: An object in free fall depends upon its initial velocity to determine if it will be…

A: The term free fall indicates that the object is moving only under the influence of the gravitational…

Q: To speed postal service, a mounted police officer was making a mail drop directly into a moving…

A:

Q: A ball rolls off the edge of a cliff. The ball's velocity is 55 m.s-1 just before it hits the…

A: Consider the height of the cliff be h. When the ball is at the top of the cliff, its initial…

Q: A baseball pitcher throws a baseball with a speed of 43m/s. Estimate the average acceleration of the…

A: solution is given by

Q: Anna, driving at 40.0 m/s, enters a one-lane tunnel. She then observes a slow-moving van 205 m ahead…

A:

Q: A car is behind a truck going on the highway. The 18 m/s car’s driver looks for an opportunity to…

A: initial speed of the car (u) = 18 msacceleration of the car (a) = 0.60 ms2distance between the car…

Q: A 1000kg weather rocket is launched straight up. The rocket motor provides a constant acceleration…

A:

Q: An object is launched off the top of a building A with an initial velocity of 150 m/s. Determine the…

A: Break the 2-D motion in to two 1-D motions and apply equation of motion separately along both the…

Q: Instantaneous Velocity The velocity of a moving object at a point during its motion can be…

A: The velocity  function of a moving object is given as v = fx = -x2+6x-2, where x is time in seconds.…

Q: A fox is chasing a bunny. The bunny is initially hopping east at 7 m/s when it first sees the fox.…

A: Given data: The initial velocity of the bunny in east direction is u=7m/s. The final velocity of…

Q: A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed…

A:

Q: A 50.0-g Super Ball travel- ing at 25.0 m/s bounces off -3- Figure P2.20 a brick wall and rebounds…

A:

Q: ue or false and why: If an object accelerates from rest its instantaneous velocity at any time will…

A: This statement is true.

Q: Q2 : a ball thrown from the top of a house is given an initial velocity 10 m/sec straight upward…

A: Newton's equation of motion is v=u-gty=ut-12gt2v2=u2-2gy Here u is initial velocity, v is final…

Q: A jet lands on an aircraft carrier at 63m/s. What is it's acceleration (assumes constant ) if it…

A: Acceleration can be calculated as follows

Q: Objects in free fall on the earth have acceleration ay = -9.8 m/s2. On the moon, free-fall…

A:

Q: Kenya is driving on the highway at a speed of 75 mph. She sees an accident about 500 feet ahead and…

A: Given  Initial velocity u = 75 mph = 33.528 m Final velocity v = 0 s = 500 feet = 152.4 m We know,…

Q: A tourist drops a rock from rest from a guard rail overlooking a valley. What is the velocity of the…

A: 1) Initial velocity (u) = 0 mst = 4 seconds

Q: Car moving with velocity 30 m/s. If the driver press the break then the car slow down by 6 m/s^2.…

A: Given : vo = 30 m/s a = -6 m/s2 (negative because car slows down)

Q: I Review Gulls are often observed dropping clams and other shellfish from a height to the rocks…

A: Given that Initial Speed of the shell is u = 0 ( as it dropped from the rest) Initial height from…

Q: A van and a car are stopped initially at an intersection. The van is ahead of the car by 5.0 m. They…

A: Given Data: The relative distance between the van and the car is, x=5.0 m The acceleration of the…

Q: A blue car pulls away from a red stop-light just after it has turned green with a constant…

A:

Q: A runner is running at a constant speed of The runner gets tired and slows down to a speed of in 5…

A:

Q: 11. Velocity and Acceleration A ball is thrown vertically upward from ground level with an initial…

A: Acceleration=-32feet/sec² Initial velocity=96feet/sec

Q: You are standing at rest at a bus stop. A bus moving at a constant speed of 5.00 m>s passes you.…

A:

Q: An over the shoulder can greatly increase your chance of surviving an overwise fatal car crah,…

A:

Q: Two rockets are launched at a fireworks display. Rocket A is launched with an initial velocity t, =…

A: Initial velocity of rocket A = Initial velocity of rocket B = 100 msHeight where the explosion has…

Q: A ball thrown upwards is held in the same place by the thrower 4 seconds later. What is the maximum…

A: The time taken by ball to reach its maximum is th=42 s=2 s The final velocity is v=0 m/s.

Q: A motorboat starting from rest travels in a straight line on a lake. (a) If the boat achieves a…

A: The average acceleration of a body is defined as the ratio of change in velocity upon the time…

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.