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Cart 1, with m1= 5.5 kg, is moving on a frictionless linear air track at an...

Cart 1, with m1= 5.5 kg, is moving on a frictionless linear air track at an initial speed of 1.7 m/s. It undergoes an elastic collision with an initially stationary cart 2, with m2, an unknown mass. After the collision, cart 1 continues in its original direction at 0.6 m/s.

1)

The horizontal component of the momentum is conserved for

A. cart 1.

B. cart 2.

C. the system of cart 1 and cart 2.

D. Momentum is not conserved for any of these systems.

2)

The mechanical energy is conserved for:

A. cart 1.

B. cart 2.

C. the system of cart 1 and cart 2.

D. Mechanical energy is not conserved in any of these systems.

3) What is the magnitude of the momentum of cart 1 before the collision?

kg m/s

4) What is the magnitude of the momentum of cart 2 before the collision?

kg m/s

5) What is the magnitude of the momentum of cart 1 after the collision?

kg m/s

6) What is the magnitude of the momentum of cart 2 after the collision?

kg m/s

7) What is the kinetic energy of cart 1 before the collision?

J

8) What is the kinetic energy of cart 2 before the collision?

J

9) What is the kinetic energy of cart 1 after the collision?

J

10) What is the kinetic energy of cart 2 after the collision?

J

11) Using your energy and momentum for cart 2 after the collision, find the mass of cart 2. (Hint: Remember that kinetic energy can be written in terms of momentum KE=p2/2m)

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