Answer
75 kg
Work Step by Step
Given: p=$7.5\times10^{2}\,kg\,m/s$, v=$10\,m/s$
Equation to find m: $p=mv$ or $m=\frac{p}{v}$
Result: $m=\frac{7.5\times10^{2}kg\,m/s}{10\,m/s}=75\,kg$
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