REACH FOR THE TOP

IMPROVE THE SENTENCE: She was "so tall to" reach the top shelf.

A block of mass m at the end of a string is whirled round in a vertical circle of radius R. The critical speed of the block at the top of its swing below which the string would slacken before the block reaches the top is

A block of mass 1 kg is hanging vertically from a string of length 1 m and Mass/length =0.001 kg/m. A small pulse is generated at its lower end. The Pulse reaches the top end in approximately.

When Rahul walks up a stationary escalator,then he takes 20s to reach the top.While when he walks up a moving escalator,he takes 10s to reach the top.The time taken by him to reach the top when stand still on the moving escalator is?

A monkey while trying to reach the top of a pole of height 12 meters takes every time a jump of 2 meters but slips 1 meter while holding the pole. The number of jumps required to reach the top of the pole, is:

A mass m is hanging by a string of length l. The velocity v_(0) which must be imparted to it to just reach the top is

In previous problem what is the work done by vec(F) if the body started at rest at the base and has a velocity v on reaching the top?