A roller coaster climbs up a hill at 4 m/s and then zips down the hill at 30 m/s. The momentum of the roller coaster   is greater up the hill than down the hill. is greater down the hill than up the hill.  remains the same throughout the ride. is zero throughout the ride.

Q: A railroad freight car, mass 15000 kg, is allowed to coast along a level track at a speed of 2.0…

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Q: A 5 kg box travels to the right at constant velocity of 7 m/s. It collides with a 10 kg box…

A: from conservation of momentum,m1v1+m2v2=(m1+m2)v5×7+10×-3=15v5=15vv=13as sign is positive means…

Q: p = mv J = Ft Ft = m Av What impulse is needed to stop a 1700 kg car in 15 seconds if it was…

A: Given  Mass (m) = 1700 kg   velocity (vi) = 25 m/s   Time (∆t)= 15 s   When car stops  vf = 0…

Q: Two boys, Ted and Larry, initially at rest, push each other apart on a frictionless surface. Ted has…

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Q: . How fast must an 823 kg Geo travel (a) to have the same linear momentum as a 2770 kg Cadillac…

A: Given Mass of geo travel m1=823 kg Mass of Cadillac m2=2770kg Velocity of Cadillac v2= 31km/h…

Q: A 500 kg truck and a 400 kg car collide as shown below. 500 kg 5 m's 400 kg 2 m's Before 500 kg v…

A: Concept: Mass of truck (m1)= 500 kg Mass of car (m2)= 400 kg Before collision: Velocity of truck…

Q: A basketball of mass 0.6kg is dropped from rest. Just before striking the floor, it has a momentum…

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Q: A coach is hitting pop flies to the outfielders. If the baseball (m = 145g) stays in contact with…

A: The average force is, F=mv-mutF=mv-ut

Q: A ball is moving at a constant velocity of 5.0 m/s. After some time, it collides with a wall and…

A: The total momentum of the ball before collision is equal to the momentum after collision. Although…

Q: A novice skier with mass of 65 kg poorly navigates the bunny slopes. The skier reaches the bottom of…

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Q: An individual with a mass of 80kg is suspended 0.60m above the ground from a pull up bar. After…

A: Solution    Given dataMass m=80kgDistance above tue ground h=0.60mthe momentum of the individual at…

Q: rocket has a total mass of 100000 kg and a burnout mass of 10000 kg including engines, shell and…

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Q: A car of mass 1200 kg, travelling horizontally at 30 m/s, hits a stationary ball of mass 0.8 kg in…

A: We have a car of mass m1=1200 kg moving with velocity u1=30 m/s elastically colliding with a ball of…

Q: Suppose rain falls vertically into an open cart rolling along a straight horizontal track with…

A: the cart is moving in horizontal direction, there is  no force acting in this direction so momentum…

Q: a woman with a mass of  kg runs at a speed of 6 m/s and jumps onto a giant skateboard with a mass of…

A: We are taking the mass of the woman to be 50kg. According to the principle of conservation of…

Q: If a  Wrecking ball has a momentum of  [X=+0.025, y-0.125] Ns What is the formula being used to…

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Q: 11. A student throws a heavy red ball from a balcony of a tall building with an initial speed vo at…

A: Calculate the impulse of both the balls.

Q: Taking the density of air to be 1.29 kg/m³, what is the magnitude of the linear momentum of a cubic…

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Q: One object moves in the positive ? direction with speed ?. Another object moves in the opposite…

A: Given data :  Speed of object 1 = V in positive direction Speed of object 2 = V In negative…

Q: A firecracker is moving to the left before it explodes. Right after exploding, it breaks off into…

A: Conservation of momentum says momentum of the system before collision equal to momentum of system…

Q: A 950 kg car travels from 40 m/s to 31 m/s. What is the initial momentum? * -8,550 kg.m/s 29,450…

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Q: A 500 kg truck and a 400 kg car collide as shown below. 400 kg 500 kg 5 m/s 2 m's Before 500 kg v…

A: Collision.

Q: A 0.35 kg ball is thrown against the wall of the school during recess. The ball is thrown with a…

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Q: Calculate the magnitude of the linear mnomentum for the following cases. (a) a proton with mass 1.67…

A: Given,

Q: A football player kicks a 4.7 N football and gives it a velocity of 21 m/s starting from rest. The…

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Q: A 1 kg coconut is traveling east at 1.3 m/s when it suddenly explodes into two pieces. A 0.3 kg…

A: There is no external forces acting on the system and hence we can apply the law of conservation of…

Q: A fan blows a cart of mass m a distance d. The same fan blows a heavier cart of mass 2m through the…

A: The same fan is blowing at two different carts, one of mass m and the other of mass 2m, and both the…

Q: A 0.130-kg baseball is dropped from rest. If the magnitude of the baseball's momentum is 1.75 kg⋅m/s…

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Q: the momentum of an object is trippled, its kinetic energy will change by what factor?   I think it…

A: momentum of an object is trippled .

Q: A spring pushes against two horizontal carts that are held together by a thread on a frictionless…

A:

Q: An oatmeal cookie is dropped on the floor. Is this an inelastic collision? Why or why not? It is…

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