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45 votes
45 votes
if a child on a skateboard has a total momentum of 86.94kgm/s and a speed of 2.3m/s, calculate the total mass of the child and skateboard

User Evrim
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1 Answer

14 votes
14 votes

\begin{gathered} P=86.94\text{ kgm/s} \\ v=2.3\text{ m/s} \\ m=? \\ P=mv \\ Solving\text{ m} \\ m=(P)/(v) \\ m\frac{86.94\text{ kgm/s}}{2.3\text{ m/s}} \\ m=37.8\text{ kg} \\ Thr\text{ mass of the child and skateboard is 37.8kg } \end{gathered}

User Xetera
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