Question

A block of mass 2kg slides down a plane having an inclination of ƒá=15.0„a . Ignore friction. The block starts from rest at the top of the incline and the length of the incline is 2.00m.
The velocity of the block when it reaches the bottom of the incline is?
(1/2) m v^2 = m g h
so
v =sqrt(2gh)
here h = 2 sin 15
3.2 m/s

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