Physics for IGCSE & O level - Forces And Motion (Section 5 - No. 4)
If the mass of an object is 2 kg and its velocity is 5 m/s, what is its momentum?
2 kg m/s
5 kg m/s
7 kg m/s
10 kg m/s
Giải thích
Momentum = mass * velocity, so 2 kg * 5 m/s = 10 kg m/s.