Question

A 5.0 kg object moving at 4.0 m/s encounters a 20 newton resistive force over a duration of 0.30 seconds. The momentum change (magnitude only) experienced by this object is approximately ____N s

Answer 1

Answer:The answer is 6Ns

Explanation: According to the newton's 2nd law "the time rate of change of momentum is directly proportional to the applied force"

mv = Ft

Therefore the force of 20N multiplied by a time of 0.30s gives 6Ns