A block released from rest from the top of a smooth inclined plane of inclination $$45$$° takes time 't' to reach the bottom. The same block released from rest, from top of a rough inclined plane of same inclination, takes time '$$2t$$' to reach the bottom, coefficient of friction is:

Question

Infinity Learn · Accepted Answer

acceleration on smooth plane is g $$sin$$ θ and for rough plane g $$($$$$sin$$θ$$-$$μ$$cos$$θ$$)time$$ is inversely proportional to square root of $$accelerationtrts=gsin$$θgsinθ$$-$$μ$$cos$$θ$$=2$$ $$11-$$μ$$=4$$ μ$$=0.75$$

A block released from rest from the top of a smooth inclined plane of inclination 45° takes time 't' to reach the bottom. The same block released from rest, from top of a rough inclined plane of same inclination, takes time '2t' to reach the bottom, coefficient of friction is:

Remember concepts with our Masterclasses.

Ready to Test Your Skills?

free study material