Physics Practice Problems Elastic Collisions Practice Problems Solution: A projectile of mass m 1 moving with a speed v1 in...

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Solution: A projectile of mass m 1 moving with a speed v1 in the +x direction strikes a stationary target of mass m2 = 2m1 head-on in an elastic collision. Find the final velocity of the projectile m1. Hint: You can use the energy and momentum principles. 1. -1/3 v1 2. -1/4 v1 3. -1/5 v1 4. 1/3 v1 5. -1/2 v1 6. v1 7. -5 v1 8. 3 v1

Problem

A projectile of mass m 1 moving with a speed v1 in the +x direction strikes a stationary target of mass m2 = 2m1 head-on in an elastic collision. Find the final velocity of the projectile m1.

Hint: You can use the energy and momentum principles.

1. -1/3 v1

2. -1/4 v1

3. -1/5 v1

4. 1/3 v1

5. -1/2 v1

6. v1

7. -5 v1

8. 3 v1