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: An object of mass M and an object of mass 2M have the same kinetic energy. Which has the greater…

A: Given: An object of mass M and an object of mass 2M have the same kinetic energy.   To discuss which…

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: A 2080 kg truck traveling north at 40 km/h turns east and accelerates to 54 km/h. (a) What is the…

A: (a) The change in kinetic energy of the truck is, Substitute the values in equation (I).

Q: A 1500 kg car travels at 30 m/s and then quickly stops in 4.2 s to avoid an obstacle. What is the…

A: The initial momentum of the car is given by, pi=mvi Here, m is the mass of the car and vi is the…

Q: 3. A car has the same kinetic energy when it is traveling south at 30 m/s as when it is traveling…

A: Momentum and kinetic energy are two quantities that describes a moving body. They are closely…

Q: Jumping up before the elevator hits. After the cable snaps and the safety system fails, an elevator…

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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: Arubber ball is thrown at a wall, and it bounces back in the opposite direction at the exact sam…

A: Impulse is given as change in momentum of the object, that is J=mu-mv

Q: A 150 g ball is dropped from a height of 3.0 m.  It bounces on a hard floor and rebounds to a height…

A: The velocity of the ball just before it touches the ground can be obtained as…

Q: How much is the magnitude of the momentum of 10 000 kg truck that travels at 12.0 m/s? How much…

A: The momentum and kinetic energy be defined as, P=mv              ..........1E=12mv2…

Q: Three carts are moving on a frictionless horizontal track as shown in the figure. The 4.00 kg cart…

A: The momentum is conserved. that is total linear momentum before collision is equal to the total…

Q: A car has the same kinetic energy when it is traveling south at 30 m/s as when it is traveling…

A: As we know , K=12mv2 which means that kinetic energy deρends on sρeed of the object

Q: A 3kg object travels with a velocity 4 m/s to the east. It then changes direction and moves 3 m/s to…

A:

Q: A 290 g ball is dropped from a height of 2.0 m.  It bounces on a hard floor and rebounds to a height…

A: We know that, The area under the F-t curve is called the impulse. Therefore, Impulse (J) =…

Q: A roller coaster climbs up a hill at 4 m/s and then zips down the hill at 7 m/s. The momentum of the…

A: Momentum of any object formulated as: p = mv          ......(1) Here, m is mass, and v is velocity…

Q: Question 6 The kinetic energy of 50-kg runner is 250 J. What is the momentum of the runner? A 0.2 kg…

A:

Q: A 14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. Find…

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Q: A ball with a momentum of 4.0 kg-m/s hits a wall and bounces straight back without losing any…

A:

Q: Compare the scenarios by filling in the blanks with greater, less, or same. A rubber ball hits a…

A: In case of rubber ball- Momentum will be same as, change in momentum is 0, by newton's third law. If…

Q: A small car and a large truck collide in an intersection. Which of the following is true? The car's…

A: Most of us intuitively that in a head on collision between a truck and a car , you are better off…

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

A: Given,

Q: impulse delivered to the froghopper

A: Initial velocity of froghopper u=0 Distance through which froghopper jumps, s=2mm=0.002m…

Q: Particles A and B have the same momentum. B has more kinetic energy than A if it: a. is moving…

A:

Q: A 500-kg car in neutral gear rolls off the top of a hill toward a valley 10.00 meters lower than the…

A:

Q: At a baseball game, a ball of mass m = 0.20 kg moving at an unknown speed is caught by a fan. The…

A:

Q: Suppose you catch a baseball and then someone invites you to catch a bowling ball with either the…

A: The force in terms of momentum is given as, Here, p denotes the momentum

Q: ciara is riding her bike at 15m/s down the lakefront path. the combined mass of her and bike if…

A: Given data: The speed of bike 1 is v1=15 m/s. The total mass of bike 1 is m1=75 kg. The mass of…

Q: A pickup truck (2,200 kg) and a compact car (1,100 kg) are moving so that they have the same…

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Q: if a 2 kg object is moving with a velocity of 3.5 m/s to the north direction, how much is its…

A: The momentum of the object and kinetic energy of the object is 7kgm/s to north , 12.25 J ( option A…

Q: An object at rest explodes and breaks into two pieces that move away. Which statement can never be…

A: Both the pieces can have the same speed or mass but cannot have the same momentum., If the object is…