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A resultant force of 2N acts n a body whose mass is 1 kg .what is the acceleration of the body ?
which of the followig is a characteristics of mass?
to what type(in class) of lever does a pair of scissors belong ?
a machine whose M.A.  is 5 raised a load through 2 m by applying a force which moves through 15m .what is the efficiency of the machine?
which of the following machines is associated with inclined plane
which of these machines is used for hoisting flags?
A pendulum bob undergoing simple harmonic motion has 2.0 cm and 12 hz as amplitude and frequency respectively.calculate its period
A simple pendulum makes 40 oscillations in two minutes .what is its frequency?
An object undergoing simple harmonic motion has its energy continuously changing fromÂ
A worker lifts a 10 kilogram block a vertical height of 2 meters. Thework he does on the block is: