Answer
$KE_m=0.5J$
Work Step by Step
From law of conservation of energy, the maximum kinetic energy is equal to the maximum potential energy. Therefore:
$KE_m=U_m$
$KE_m=\frac{1}{2}Kx_m^2$
$KE_m=\frac{1}{2}(100)(0.1)^2$
$KE_m=0.5J$
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