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A particle is projected with speed 20m s...

A particle is projected with speed `20m s^(-1)` at an angle `30^@` With horizontal. After how much time the angle between velocity and acceleration will be `90^@`

A

1 s

B

2 s

C

1.5 s

D

never

Text Solution

Verified by Experts

The correct Answer is:
A
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