7
QuizMultiple Choice

Lab: Conservation of Linear Momentum — Unit test

Question 7 • [HSPHY] Physics Sem 1 (26-27)

A 150 g egg is dropped from 3.0 meters. The egg is moving at 4.4 m/s right before it hits the ground. The egg comes to a stop in 0.072 seconds.

Answer
A
0.66 N
B
9.2 N
C
13 N
D
180 N

Explanation

Use the change in velocity over the stopping time to find the average acceleration: (0 − 4.4 m/s) ÷ 0.072 s ≈ −61 m/s². The average net force has magnitude m|a| = 0.150 kg × 61 m/s² ≈ 9.2 N, so the correct choice is 9.2 N.

AI-written and checked against the verified answer.

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