A 500g block traveling at 60 cm/s slides onto a 1kg cart as shown. The block stops sliding before reaching the end of the cart.
As the block is sliding on the cart,
which object has the larger acceleration?
1.the cart
2.the block
3.neither; the acceleration is the same
4.impossible to determine
[Ques. 2] A 500-g block traveling at 60 cm/s slides onto a 1-kg cart as shown. The block stops sliding before reaching the end of the cart.
As the block is sliding on the cart,
which object has the larger net
force on it?
1.the cart
2.the block
3.neither; the net force is the same
4.impossible to determine
[Ques. 3] Cart A with momentum p (in magnitude) and speed 2v collides with cart B at rest. After the collision, cart A has speed v and cart B has speed 3v, as shown. What can you say about the momentum of cart B after the collision?
1.It is smaller than p.
2.It is equal to p.
3.It is larger than p.
4.It is impossible to predict what the momentum of cart B will be after the collision.
[Ques. 4] Cart A with momentum p (in magnitude) collides with cart B at rest and rebounds. What can you say about the momentum of cart B after the collision?
1.It is smaller than p.
2.It is equal to p.
3.It is larger than p.
4.It is impossible to predict what the momentum of cart B will be after the collision.
[Ques. 5] A 500 g lump of clay is dropped onto a 1 kg cart moving at 60 cm/s. The clay is moving at 30 cm/s just before landing on the cart.
After the collision, the speed of the cart and clay is closest to:
1.60 cm/s
2.50 cm/s
3.40 cm/s
4.30 cm/s
5.20 cm/s
6.10 cm/s
7.0 cm/s
8.Impossible to determine
[Ques. 6] A block having mass m travels along a horizontal frictionless surface with velocity vx. What impulse must be delivered to the block to reverse its direction?
1.2mvx
2.mvx
3.0
4.mvx
5.2mvx
6.None of the above
7.Cannot be determined
[Ques. 7] A block having mass m travels along a horizontal frictionless surface with speed v. What is the smallest amount of work that must be done on the block to reverse its direction?
1.mv
2.mv
3.0
4.mv
5.mv
6.None of the above
7.Cannot be determined
[Ques. 8] A 100 g lump of clay hits a wall at 70 cm/s and sticks. A 100 g rubber ball hits the same wall at 60 cm/s and rebounds with a speed of 30 cm/s. Which object experiences the larger impulse delivered by the wall during the collision?
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