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In the figure, a sphere of radius 2 m rolls on a plank. The accelerations of the sphere and the plank are indicated. The value of is
detailed solution
Correct option is C
As sphere rolls, the lowest point of the sphere should have the same acceleration as the plank. Hence, a1=αR−a22=2α−4 ⇒ α=3rad/s2Talk to our academic expert!
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A homogeneous solid cylindrical roller of radius R and mass M is pulled on a cricket pitch by a horizontal force. Assuming rolling without slipping, angular acceleration of the cylinder is
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