A force of 10 N acts on a 5 kg object for 2 seconds. What is the change in momentum?
Q1. A force of 10 N acts on a 5 kg object for 2 seconds. What is the change in momentum?
Answer: 20 kg·m/s
Explanation: Impulse = F×t = 10 N × 2 s = 20 kg·m/s. Option C ignores time duration.