Question Detail
Question
A man pulls an 80-kg crate 20 m with a force of 150 N at 30°. How much work is performed?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Work done is W = F s cos θ = (150 N)(20 m)(cos 30°) = 150 × 20 × 0.866 = 2598 J ≈ 2.6 × 10³ J.
Hint
Use the formula W = F s cos θ.