MHT CET 2023 Physics question
A stone is projected at angle '' with velocity 'u'. If it executes nearly a circular motion at its maximum point for short time, the radius of the circular path will be (g = acceleration due to gravity)
Answer: (B)
Solution
At the highest point the vertical component of velocity is zero, so the velocity is purely horizontal with magnitude . The acceleration there is only directed vertically downwards, which is perpendicular to the velocity and hence acts as the centripetal acceleration:
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