Question

A body is thrown vertically upward with velocity 30 m/s. Calculate 3
(i) maximum height attained by the body,
(ii) time taken to return back,
(iii) magnitude and direction of velocity at 4 sec.

Answer 1

Answer:

There are four types of friction: static, sliding, rolling, and fluid friction. Static, sliding, and rolling friction occur between solid surfaces. Static friction is strongest, followed by sliding friction, and then rolling friction, which is weakest. Fluid friction occurs in fluids, which are liquids or gases.

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