A spring with spring constant k = 368N/m is fixed at one end and has a .25kg mass attached to the other end. The spring is initially in equilibrium when a child grabs the mass and stretches the spring by 10cm and holds the mass there. (a) How much work did the spring do on the mass? (b) How much work did the child do on the mass? (c) What is the net work done on the mass?
A spring with spring constant k = 368N/m is fixed at one end and has a .25kg mass attached to the other end. The spring is initially in equilibrium when a child grabs the mass and stretches the spring by 10cm and holds the mass there. (a) How much work did the spring do on the mass? (b) How much work did the child do on the mass? (c) What is the net work done on the mass?
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Must solve all 3 parts a, b and c. Don't solve only one. Skip it if u don't want to solve all parts.
Transcribed Image Text:3. A spring with spring constant k = 368N/m is fixed at one end and has a .25kg mass
attached to the other end. The spring is initially in equilibrium when a child grabs the mass
and stretches the spring by 10cm and holds the mass there.
(a) How much work did the spring do on the mass?
(b) How much work did the child do on the mass?
(c) What is the net work done on the mass?
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