Question:
How long must a 1500 N force act on a car to give it a momentum of 56000 kg-m/s starting from rest?
Find out key variables:
Force: 1500 N
Momentum: 56,000 kg-m/s
Recall the formula: ΔMomentum (kg m/s) = Force (N) x Time Taken (s)
Solve:
56,000 = 1500 x time taken
time taken = 56,000/1500
time taken = 112/3
time taken = 37.33 seconds
