A 1 kg block moving at 6 m/s on a smooth horizontal surface compresses an ideal spring of force constant 200 N/m. Maximum compression is:
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A 1 kg block moving at 6 m/s on a smooth horizontal surface compresses an ideal spring of force constant 200 N/m. Maximum compression is:

G1 Physics · Accepted Answer

At maximum compression the block momentarily stops. ½mv² = ½kx² ⇒ x = v√(m/k) = 6/√200 = 3/√50 m ≈ 0.424 m.