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Force and Laws of Motion
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29/10/2021 4:40 pm
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What is the momentum in kg.m/s of a 10 kg car travelling at (a) 5 m/s (b) 20 cm/s, and (c) 36 km/h?
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29/10/2021 4:41 pm
Mass of car, m = 10 kg
Momentum = m x v
(a) Velocity, v = 5 m/s
Momentum = 10 x 5 = 50 kg.m/s
(b) Velocity, v = 20 cm/s = 0.2 m/s
Momentum = 10 x 0.2 = 2 kg.m/s
(c) Velocity, v = 36km/hr = 10 m/s
Momentum = 10 x 10 = 100 kg.m/s