F=ma 2025 Problem 12

Physics · mechanics

Problem

Question: A

50 g

piece of clay is thrown horizontally with a velocity of

20 m/s

striking the bob of a stationary pendulum with length

l = 1 m

and a bob mass of

200 g

. Upon impact, the clay sticks to the pendulum weight and the pendulum starts to swing. What is the maximum change in angle of the pendulum? (A)

\arccos(1/5)

. (B)

\arcsin(7/10)

. (C)

\arccos(2/3)

. (D)

\arcsin(3/10)

. (E)

\arctan(4/5)