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A stone is projectef from level ground s...

A stone is projectef from level ground such that its horizontal and vertical components of initial velocity are `u_x=10(m)/(s)` and `u_y=20(m)/(s)` respectively. Then the angle between velocity vector of stone one second before and one second after it attains maximum height is:

A

3

B

4

C

5

D

6

Text Solution

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The correct Answer is:
B
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