Physics-Work Done by Forces
NEET Physics Work Done by Forces MCQ Question
Type: MCQ-numerical-Hard-Class 11
A spring with a force constant k = 0.5 N/m is compressed by 2 m. What is the work done by the spring force during this compression?
A
1 J
B
-1 J
C
2 J
D
-2 J
Correct Answer
Option D
Detailed Explanation
The work done by a spring force is calculated using W = -kx^2/2. For k = 0.5 N/m and x = 2 m, W = -(0.5)(2)^2/2 = -2 J.
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