Astudent used a yardstick to model elastic rebound. the student bent the stick without breaking it and then let the stock go. what does the bent stick represent in the student's model?

a. the rock's original shape

b. a siesmic wave

c. the rock's deformed shape

d. a fault formed

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.