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Question

A particle is executing simple harmonic motion. Its displacement is given by x=5sinπt where x is in cm and t in seconds. How long will the particle take to move from the position of equilibrium to the position of maximum displacement ?

A
0.5 s
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B
1.0 s
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C
1.5 s
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D
2.0 s
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Solution

The correct option is A 0.5 s
Maximum displacement = amplitude =5 cm
At time t=0, x=0 (equilibrium position). Hence time t taken by the particle to move from x=0 to x=5 cm is given by
5=5sinπt
or 1=sinπt
i.e πt=π2 or t=0.5 s

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