A 1.1 kg block is held against a spring of force constant 2.0×10^4 N/m, compressing it a distance of 0.20 m.
How fast is the block moving after it is released and the spring pushes it away?
physics - bobpursley, Tuesday, March 15, 2011 at 7:59pm
stored energy=1/2 k x^2
the KE gained is equal to that, solve for v.