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A ball attached to a string travels in uniform circular motion in a horizontal circle of 50 cm radius in 1 s. Sun light shining on the ball throws its shadow on a wall. The velocity of the shadow at the centre of the path isA. `pi m//s`B. `0.5pi m//s`C. `0.5 m//s`D. `1 m//s` |
Answer» Correct Answer - A `v_(m)=Aomega=0.5xx(2pi)/(T)=(0.5xx2pi)/(1)=pi` |
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