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MHT CET Physics question

PhysicsWork, Energy and PowerMHT CET

You may have seen in a circus, a motorcyclist driving in vertical loop inside a 'death well' (a hollow spherical chamber with holes, so that spectators can watch from outside). What is the minimum speed required at the uppermost position to perform a vertical loop, if the radius of the chamber is 25 m?

Answer: (A)

Solution

At the top the minimum speed satisfies mg = mv²/r, so v = √(gr) = √(10 × 25) = 15.8, i.e. about 16 m/s. 20 and

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Question ID VK-040748