Question

A wagon is pulled from rest to 14 m/s in 45 seconds. If the mass of the wagon is 5 kg.what was the applied force?

Answer 1

time (t) = 45 sec

Speed (v) = 14 m/s

mass (m) = 5kg

F = Force

F = m*a

a = acceleration = Δv / Δt = 14m/s / 45 s = 0.31 m/s^2

F = 5 kg * 0.31 m/s^2 = 1.56 kgm/s^2 = 1.56 N