Answer:
A. 1.6 J
Explanation:
The formula to calculate the work done on a spring can be calculated by ,
[tex]\sf Work \ done = \dfrac{1}{2} kx^2 [/tex]
where
- k is spring constant and,
- x is displacement from the equilibrium position.
We are given, Spring constant (k) is 80 N/m and displacement (x) is 20 m = 0.20 cm
substitute the given values in the above formula,
⇒️ Work done = 1/2 × 80 × (0.20)²
⇒️ Work done = 40 × 0.04
⇒️ Work done = 1.6 Joules
Therefore, the work done on the spring is 1.6 Joules.
Option (A) is the required answer.
