- #1
dorkymichelle
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Homework Statement
A 0.50-kg block attached to an ideal spring with a spring constant of 80 N/m oscillates on a horizontal frictionless surface. The total mechanical energy is 0.12 J. The greatest speed of the block is:
Homework Equations
E mech = 1/2kx^2+ 1/2mv^2
The Attempt at a Solution
Mechanical energy = Spring potential energy + kinetic energy
E mech = 1/2kx^2+ 1/2mv^2
0.12J=1/2(80)^2+1/2(50)V^2
but I have two unknowns, v and x...