you are correct. working it another way,
F = ma, so a = 500/4000 = 0.125 m/s^2
v = at = 0.125 * 5 = 0.625
p = mv = 4000 * 0.625 = 2500 kg-m/s
A truck of mass 4000 kg is at rest, but free to roll with no resistance. If you push it forward with a force of 500 N, the momentum at the end of 5 s of pushing will be
force=delta p/ delta t
500= delta p/5
p=2500?? right?
1 answer
1 answer