A force of acts at an angle to the horizontal, where , and moves a body along a horizontal floor. Find the work done by the force.
Answer and explanation
Correct answer: C.
- Step 1: Work .
- Step 2: J.
Answer
.
Why not the others: is what you get if you ignore the angle. is what you get if you use in place of . is what you get if you forget the distance.
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