Question

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What is the potential energy of a spring that is compressed 0.75 m by a 25 kg block if the spring constant is 85 N/m?



24

34

87

797

Answer 1

Potential energy of spring = 24 Joules.

Step-by-step explanation:

Given the following data;

Spring constant = 85N/m

Extension, e = 0.75m

Mass = 25kg

To find the potential energy of a spring

Potential energy of a spring is given by the formula;

P.E = ½ke²

Substituting into the equation, we have

P.E = ½*85*0.75²

P.E = 42.5 * 0.5625

P.E = 23.91 ≈ 24 Joules

P.E = 24 Joules