A spring has a spring constant of 80 N/m. How much elastic potential energy

is stored in the spring when it is compressed by 0.1 m?

O A. AJ

O B. 0.4 J

O c. 0.8J

O D. 8J

Answer:B

Explanation:

elastic constant (k) = 80N/m

extension (e) = 0.1m

Elastic potential energy = (k x e^2) / 2

Elastic potential energy = (80 x (0.1) ^2) / 2

Elastic potential energy = (80x0.1x0.1) / 2

Elastic potential energy=0.8/2

Elastic potential energy=0.4

Elastic potential energy is 0.4 joules