100075
AssignmentMultiple Choice

Work and Power

Question 100075 • 350CR Integrated Science

Carlos uses a rope to pull his car 30 m to a parking lot because it ran out of gas. If Carlos exerts 2,000 N of force to pull the rope, and the rope is at an angle of 15° to the road, how much work did he do? Round your answer to two significant figures.

Answer
A
1.6 × 104 J
B
3.5 × 104 J
C
5.8 × 104 J
D
9.0 × 104 J

Explanation

Work is the force component in the direction of motion multiplied by the distance: W = Fd cos θ. Here, W = (2,000 N)(30 m) cos 15° ≈ 57,955 J, which rounds to 5.8 × 10⁴ J to two significant figures. The correct choice is 5.8 × 10⁴ J.

AI-written and checked against the verified answer.

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