A) \[50m\]
B) \[25m\]
C) \[12.5m\]
D) \[19.6m\]
Correct Answer: C
Solution :
As body is thrown upwards with kinetic energy of \[490\,\,J\], so at maximum height it converts wholly to potential energy \[ie\], \[{{U}_{\max }}=490\,\,J\] Let at height\[h\], it becomes just half. \[mgh=\frac{{{U}_{\max }}}{2}\] or \[h=\frac{490}{2\times 2\times 9.8}=12.5\,\,m\]You need to login to perform this action.
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