5. A block of mass 2.50kg is placed on a frictionless surface against a horizontal spring with Ks = 650N/m, and the spring is compressed by 0.150m. after the spring/block is released, find it kinetic energy and speed as it passes the equilibrium point. For a spring, Us= (1/2)KsX^2 , , @Mathematics
nevermind, I got this one
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