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132. A ball of radius 11 cm and mass 8 kg rolls from rest down a ramp of length 2m

A ball of radius 11 cm and mass 8 kg rolls from rest down a ramp of length 2m. The ramp is inclined at 35° to the horizontal. When the ball reaches the bottom, its velocity is (sin 35o = 0.57)

(a)  2 m/s

(b)  5 m/s

(c)   4 m/s

(d)  6 m/s

Ans. c

(23)

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