A block of mass 0.3 kg is placed on a verti-
cal spring of constant 7915 N/m and pushed
downward, compressing the spring 0.1 m. Af-
ter the block is released it leaves the spring
and continues to travel upward.
The acceleration of gravity is 9.8 m/s2 .
What height above the point of release will
the block reach if air resistance is negligible?
Answer in units of m

Question

A block of mass 0.3 kg is placed on a verti-
cal spring of constant 7915 N/m and pushed
downward, compressing the spring 0.1 m. Af-
ter the block is released it leaves the spring
and continues to travel upward.
The acceleration of gravity is 9.8 m/s2 .
What height above the point of release will
the block reach if air resistance is negligible?
Answer in units of m

kmeis002 · Answer

Draw a FBD to find the net force on the block, then you can apply kinematics  to this. Use Hooke's law f(x) + k(x2-x1).