Question:
A cylinder rolls up an inclined plane, reaches some height and then rolls down (without slipping throughout these motions). The directions of the frictional force acting on the cylinder are
A cylinder rolls up an inclined plane, reaches some height and then rolls down (without slipping throughout these motions). The directions of the frictional force acting on the cylinder are
Updated On: May 3, 2024
- up the incline while ascending and down the incline while descending
- up the incline while ascending as well as descending
- down the incline while ascending and up the incline while descending
- down the incline while ascending as well as descending
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The Correct Option is B
Solution and Explanation
mg $\sin
heta$ component is always down the plane whether it is rolling up or rolling down.Therefore, for no slipping, sense of angular acceleration should also be same in both the cases.
Therefore, force of friction f always act upwards.
heta$ component is always down the plane whether it is rolling up or rolling down.Therefore, for no slipping, sense of angular acceleration should also be same in both the cases.
Therefore, force of friction f always act upwards.
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