- #1

- 69

- 0

For this question, the answer is simply 1.5 x 20 = 30N, but I am not sure of the exact explanation for such working.

My own attempt at the solution is at follow:

Rate of change of mass dm/dt = 20

Change of momemtum of one baggage = m(1.5 - 0)

Force needed to this change of momemtum = dp/dt = dm/dt x v = 1.5 x 20 = 30N

I am not sure whether my reasoning is correct