Questions
A ring, cylinder and solid sphere are placed on the top of a rough incline on which the sphere can just roll without slipping. When all of them are released at the same instant from the same position, then
detailed solution
Correct option is A
For a body to roll without slipping on an incline of angle θ:μ≥tanθ1+mR2II is minimum for the sphere, hence μ required is least for the sphere. Here it is given that μ is just sufficient to roll the sphere purely. It means the ring and the cylinder will not roll purely, so kinetic friction will act on them. Ultimately, friction acting on each of the three will be μmg cos θ and each of them will have the same acceleration. Hence, all of them reach at the same time.Talk to our academic expert!
Similar Questions
A solid sphere, a hollow sphere and a disc, all having same mass and radius, are placed at the top of an incline and released. The friction coefficients between the objects and the incline are the same and not sufficient to allow pure rolling. Least time will be taken in reaching the bottom by
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