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A spring with a spring constant of 40n/cm has a cage attached to one end. how much work does the spring force do on the cage if the spring is stretched from its relaxed length by 7.6 mm?

Respuesta :

work of a spring:
W = 0.5 × k × x²

k spring constant
x stretch of the spring

make sure to convert all quantities into the correct units before using the equation
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