STANDARD Physics Work done by a variable force MCQ Question
A force F acting on an object varies with distance x as shown in the figure. The work done by the force in moving the object from x = 0 to x = 20 m is
500 J
1000 J
1500 J
2000 J
Correct Answer
Detailed Explanation
The work done is equal to the area under the F-x graph. This includes the area of rectangle ABCD and triangle ΔCDE. Calculating these areas gives 1000 J for the rectangle and 500 J for the triangle, totaling 1500 J.
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