Question

A rocket with the mass of 3 kg and has a momentum of 90 kg*m/s. What is the velocity of the rocket? m/s (Round to 2 significant figures)

Answer 1

Given data

*The given mass of the rocket is m = 3 kg

*The given momentum is p = 90 kg.m/s

The formula for the velocity of the rocket is given by the momentum formula as

`\begin{gathered} p=mv \\ v=(p)/(m) \end{gathered}`

Substitute the known values in the above expression as

`\begin{gathered} v=(90)/(3) \\ =30\text{ m/s} \end{gathered}`

Hence, the velocity of the rocket is v = 30 m/s