Physics-
General
Easy
Question
The variation of the acceleration 
of the particle executing S.H.M. with displacement 
is as shown in the figure
The correct answer is:
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A mass performs oscillations of period 
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A smooth track is shown in figure. A part of track is a circle of radius R. A block of mass m is pushed against a spring of constant k fixed at the left end and is then released. The initial compression of the spring so that the block presses the track with a force mg when it reaches the point P of the track, where R is radius of the track :
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A block weighing 10 N travels down a smooth curved track AB joined to a rough horizontal surface. The rough surface has a friction coefficient of 0.20 with the block. If the block starts slipping on the track from a point 1.0 m above the horizontal surface, then it would move a distance S on the rough surface. The value of S is 
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physics-General
