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1.
A cyclist moves in such a way that he track 
turn after 100 m. What is the displacement when to takes seventh turn?
turn after 100 m. What is the displacement when to takes seventh turn?
2.
A body is moving in a circular path with acceleration 
. If its velocity gets doubled, find the ratio of acceleration after and before the change
. If its velocity gets doubled, find the ratio of acceleration after and before the change
3.
A weightless thread can bear tension upto 37 N. A. stone of mass 500 g is tied to it and revolved in a circular path of radius 4 m in a vertical plane. 
then the maximum angular velocity of the stone will be
then the maximum angular velocity of the stone will be