Laws of MotionHard
Question
An inclined plane makes an angles 30o with the horizontal. A groove OA = 5m cut in the plane makes an angle with 30o with OX. A short smooth cylinder is free to slide down the influence of gravity. The time taken by cylinder to reach from A to O is (g =10 m/s2)
Options
A.4s
B.2s
C.2√2s
D.1s
Solution
Acceleration along the grove = (g sin 30o)(sin 30o)
=
= 2.5 ms-2 ; t = 
= 2s
=
= 2.5 ms-2 ; t = = 2sCreate a free account to view solution
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