Physics-
General
Easy
Question
One end of a spring of force constant k is fixed to a vertical wall and the other to a block of mass m resting on a smooth horizontal surface. There is another wall at a distance x0 from the block. The spring is then compressed by 2x0 and released. The time taken to strike the wall is
The correct answer is:
The total time from A to C
= tAC = tAB + tBC = (T/4) + tBC
where T = time period of oscillation of spring -mass system
tBC can be obtained from, BC = AB sin (2p/T) tBC
putting 
we obtain 
Þ tAC = 
=.
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