A 7.00-g bullet is fired into a 545-g block of wood suspended as a ballistic pendulum.The combined mass swings up to a height of 9 cm.What was the magnitude of the momentum of the combined mass immediately after the collision?

Question

Quizplus · Accepted Answer

The potential energy at the highest point is equal to the kinetic energy just after the collision. Using mgh = 0.5 * (m+M) * v^2, solve for v, then use p = (m+M) * v to find the momentum.

A 700-G Bullet Is Fired into a 545-G Block of Wood