Question

A sphere rolls down on an inclined plane of inclination $\theta$. What is the acceleration as the sphere reaches bottom

• A.
• B.
• C.
• D.

Answer 1

The correct option is A

Acceleration (a) $=\frac{g\sin \theta }{1+\frac{K^2}{R^2}}=\frac{g\sin \theta }{1+\frac{2}{5}}=\frac{5}{7}g\sin \theta .$