Question:medium
A car is moving with velocity V at the top of a semi-circular hill of radius 40 m such that the normal force on it is zero. Find the velocity (V) of the car. [use \( g = 10 \, \text{ms}^{-2} \)]
A car is moving with velocity V at the top of a semi-circular hill of radius 40 m such that the normal force on it is zero. Find the velocity (V) of the car. [use \( g = 10 \, \text{ms}^{-2} \)]
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At the top of a vertical circle, \( N = m(g - v^2/R) \). Setting \( N = 0 \) gives \( v = \sqrt{gR} \), the critical velocity.
Updated On: May 12, 2026
- \( 10 \, \text{m/s} \)
- \( 15 \, \text{m/s} \)
- \( 20 \, \text{m/s} \)
- \( 25 \, \text{m/s} \)
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The Correct Option is C
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