A) 100 m
B) 200 m
C) 400 m
D) 1000 m
Correct Answer: B
Solution :
Suppose person climbs upto height h, then by using \[W=JH\] Þ \[mgh=JQ\] Þ \[60\times 9.8\times h=4.2\times \left( {{10}^{5}}\times \frac{28}{100} \right)\] Þ \[h=200\,m\]You need to login to perform this action.
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