Question

If a 5 kg object experiences a 10 N force for a duration of 0.1 s, then what is the change in momentum of the object?

Answer 1

According to the second Newton's law, the change in momentum is equal to:

$$\Delta p = F\Delta t$$

where $F = 10N$ is the net force, and $\Delta t = 0.1s$ is the duration. Thus, obtain:

$$\Delta p = 10N\cdot 0.1s = 1kg\cdot m/s$$

Answer. $1kg\cdot m/s$.