Question

A spring with a spring constant of 302 N/m is initially compressed by a distance of 0.078 m from its equilibrium position. A mass of 0.038 kg is then held against the compressed spring and released from rest while upon a horizontal, frictionless surface. Assuming that the spring then pushes the mass across the surface, with speed does the mass leave the spring? Assume proper SI Units.

Answer #1

07.1
A 2.00kg mass is initially at rest on the end of a spring that
is compressed by 40.0cm from its equilibrium position. The spring
has spring constant 800 N/m. This mass is released and the
mass shoots away from the spring on a frictionless, horizontal
surface. It then hits a 3.00kg mass, and the two masses stick
together and slide up a rough-surface hill (with friction) on the
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Express your answer to two significant figures and include the
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units of m/s.

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