In Fig a sphere of radius `2 m` rolls on a plank. The accelerations of the sphere and the plank are indicated. The value of `alpha` is A. `2rad//s^(2)`B. `4rad//s^(2)`C. `3rad//s^(2)`D. `1rad//s^(2)`

In Fig a sphere of radius `2 m` rolls on a plank. The accelerations of

1.	In Fig a sphere of radius `2 m` rolls on a plank. The accelerations of the sphere and the plank are indicated. The value of `alpha` is A. `2rad//s^(2)`B. `4rad//s^(2)`C. `3rad//s^(2)`D. `1rad//s^(2)`
Answer» Correct Answer - C As sphere rolls the lowest of the point of the sphere should have the same acceleration as the plank hence `a_(1)=alphaR-a_(2)` `2=2alpha-4implies alpha=3rad//s^(2)`

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In Fig a sphere of radius `2 m` rolls on a plank. The accelerations of the sphere and the plank are indicated. The value of `alpha` is A. `2rad//s^(2)`B. `4rad//s^(2)`C. `3rad//s^(2)`D. `1rad//s^(2)`

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