Name: Date: Period: Worksheet CK 7 #2. Momentum, Impulse 1. A 30 kg cart is moving at 3 m/s. What is the momentum of the cart? 2. What velocity must a 2 kg object have to move with a momentum of 40 kg*m/s? An object with 0.5 kg*m/s is moving at 4 m/s. What is its mass? 4. If it takes 20 N over 4 s to stop a ball, what is the impulse? 5. If the impulse is 12 Ns, how much force is used to stop a moving object in 3s? 6. A 0.5 kg object is at rest. A 6.0 N force acts on the object for 2.0 s. What is the final velocity of the object? 7. A 2.0 kg cart is moving at 5 m/s. If it hits a sponge that applies a force of 12N, how long will it take for the cart to stop? 8. A 70 kg man is moving at 10 m/s. How much force would it take to stop him in 2 s? 9. A 6 kg bowling ball is pushed from rest to 12 m/s in 2 s. What is the force used to push the ball? 10. A 3 kg object accelerates from rest to 10 m/s in 2 seconds. How much impulse does it have