Circular MotionMedium
Question
A particle is given an initial speed u inside a smooth spherical shell of radius R = 1 m that it is just able to complete the circle. Acceleration of the particle when its velocity is vertical is -
Options
A.g√10
B.g
C.g√2
D.3g
Solution
u2 = 5gR ∴ v2 = u2 - 2gR= 5gR - 2gR = 3gR
Tangential acceleration at B is at = g (downwards)
Centripetal acceleration at B is aC =
= 3ga =
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