A pellet is fired horizontally into a wooden block suspended from two light strings…
PHYSICS · Single correct · AP · Physics 1: Algebra-based · Linear Momentum · Linear Momentum
Problem
A 5.0g pellet is fired horizontally into a 1.0kg wooden block suspended from two light strings so that it can swing like a pendulum. The pellet embeds in the block, and the combined system subsequently rises to a vertical height of 0.040m before momentarily coming to rest. What was the speed of the pellet just before impact?
(a) 222m/s
(b) 89m/s
(c) 178m/s
(d) 126m/s