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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 1 > Chapter 6 - Newton's Laws of Motion > A body sliding on a smooth inclined plane requires 4 sec to reach the bottom after starting from rest at the top. How much time does it take to cover one fourth the distance starting from rest at the top.

A body sliding on a smooth inclined plane requires 4 sec to reach the bottom after starting from rest at the top. How much time does it take to cover one fourth the distance starting from rest at the top.

A force f1​ acts on a particle so as to accelerate it from rest to a velocity v. If the force f1​ is replaced by f2​ which decelerates it to rest