Question

A block is kept on a inclined plane of inclination $\theta$ of length l .The velocity of particle at the bottom of inclined is (the coefficient of friction is $\mu$)

• A. $\sqrt{\left[2gl(\mu cos\theta -sin\theta )\right]}$
• B. $\sqrt{2gl(sin\theta -\mu cos\theta )}$
• C. $\sqrt{2gl(sin\theta +\mu cos\theta )}$
• D. $\sqrt{2gl(cos\theta +\mu sin\theta )}$

Answer 1

The correct option is B $\sqrt{2gl(sin\theta -\mu cos\theta )}$