A stone projected at an angle of 
from the ground level strikes at an angle of 
on the
roof of a building of height ' h '. Then the speed of projection of the stone is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Let the initial and final speeds of stone be u and v.
… (i)
… (ii)
On solving Eqs. (i) and (ii), we get
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