A) \[{{u}_{1}}>{{u}_{2}}\]
B) \[{{u}_{1}}<{{u}_{2}}\]
C) \[{{u}_{1}}={{u}_{2}}\]
D) \[{{u}_{1}}\,and\,{{u}_{2}}\,cannot\,be\,compared\]
Correct Answer: C
Solution :
The gravitational force is conservative, so the work done by it is independent of path. Hence in both cases \[\frac{1}{2}m{{u}^{2}}=mgh\] \[u=\sqrt{2hg},\] independent of mass So, \[{{u}_{1}}={{u}_{2}}\]You need to login to perform this action.
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