Question

what is change in momentum of car weighing 1500 kg when it's speed increase from 36 km /h to 72km/h uniformly?​

Answer 1

Mass of car: 1500 kg

Velocity v1 = 36 km/hr = 10m/s

Momentum p1 = 1500 × 10 = 15000 kg•m/s

Velocity v2 =72 km/hr = 20m/s

Momentum p2 = 1500×20 = 30000 kg•m/s

Change in momentum = p2 − p1

p1= 30000 − 15000 = 15000 kg•m/s

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