Physics Momentum Questions Please Help!?

Posted on 2014-12-04 08:13:00 in Physics by ALEX

Use the impulse-momentum theorem to find the time it takes a ball falling from a tall building to change its speed from 6.1 m/s to 17.1 m/s.

A 79-kg skater and a 45-kg skater stand at rest on frictionless ice. They push off, and the second skater moves at 1.8 m/s in the +x direction. What's the first skater's velocity? Give your answer in m/s.

Squid motion. An 10.4-kg squid hovering at rest in water fires a burst of water with impulse 58.6 kg m/s. What's its new speed?

A child playing tee ball hits a stationary 56-g ball with a 220-g bat swinging initially at 4.2 m/s. Bat and ball move in the same direction after the impact, the ball at 6.5 m/s. What's the bat's post-impact speed?

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