Q. A body of 4.0 kg is lying at rest. Under the action of a constant force, it gains a speed of 5 m/s. The work done by the force will be____.
A) 30J
B) 50J
C) 40J
D) 20J
✔ Correct Answer: 50J
Exam Insight
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A) 30J
B) 50J
C) 40J
D) 20J
✔ Correct Answer: 50J
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