Answer:
Given, \[W=2500\,Jh=5m\] \[g=9.8m/{{s}^{2}}m=?\] We know, \[W=mgh\Rightarrow m=\frac{W}{gh}\] \[\Rightarrow m=\frac{2500}{9.8\times 5}=51.02\,\,kg\]
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