a 250 g block is dropped onto a vertical spring with aconstant k= 2.5N/cm. The block becomes attached to the spring, andthe spring compresses 12 cm before momentarily stopping ;while thespring is being compressed"
A) what is the work done by the block's weight?

b) what is the work done by the spring?

c) what is the speed of the block just before it hits thespring?

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Work done by a constant force is the dot product of the force andthe displacement. Work done by a variable force is calculated withan integral. The net work done on an object is equal to the changein the object's kinetic energy. If the object stops, its kineticenergy is zero.

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