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Question

A body of mass 1kg is executing SHM given by
X=6cos(100t+π/4)cm
Determine the maximum kinetic energy of the body.


Solution

From the equation we get ,
a =6cm=0.06 m
Omega =100
Given mass m=1
Kinetic energy,
KE= (1/2) m (omega)²a²
     =0.5×1×100²×(0.06)²
     = 18 J

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