A cylinder is rolling without slipping on a horizontal plane P. The friction between the plank P and the cylinder is sufficient for no slipping. The coefficient of friction between the plank and the ground surface is zero. Initially, P is attached with a string S as shown in the figure. If the string is now burned, then.
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a
the plank will start motion with a speed v along forward direction
b
the plank will start motion with a speed v along backward direction
c
the plank will remain static
d
linear velocity of the cylinder will decrease and angular velocity will increase
answer is C.
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Detailed Solution
Initially there is no friction between cylinder and plank. Even after burning no friction comes into picture, hence plank remains constant.