A) \[{{h}_{1}}={{e}^{4}}h\]
B) \[h=e\,{{h}_{1}}\]
C) \[{{h}_{1}}=h{{e}^{2}}\]
D) \[h={{h}_{1}}/e\]
Correct Answer: C
Solution :
When a body falls from height h, it strikes the ground with a velocity\[v=\sqrt{2gh}\]. Let it rebounced with a velocity v and rise to a weight \[{{h}_{1}}\]. \[v=\sqrt{2g{{h}_{1}}}\] \[e=\frac{v}{u}\sqrt{\frac{{{h}_{1}}}{h}}\] Clearly, \[{{h}_{1}}={{e}^{2}}h\]
You need to login to perform this action.
You will be redirected in
3 sec
