A) \[400\,\,m\]
B) \[20\,\,m\]
C) \[30\,\,m\]
D) \[40\,\,m\]
Correct Answer: D
Solution :
Maximum height attained is given by \[{{h}_{\max }}=\frac{{{u}^{2}}}{2g}\] Given, \[u=20\text{ }m/s\] \[{{h}_{\max }}=\frac{{{(20)}^{2}}}{2\times 10}=20m\] For the second body also \[{{h}_{\max }}=20m\] \[\therefore \] Sum of maximum heights \[=20\text{ }m+20\text{ }m\] \[=40\,\,m\]You need to login to perform this action.
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