Solve the problem
-A person is pulling a freight cart with a force of 57 pounds. How much work is done in moving the cart 70 feet if the cart's handle makes an angle of $20 ^ { \circ }$ with the ground?
A) $3749.4 \mathrm { ft } - \mathrm { lb }$
B) $1364.7 \mathrm { ft } - \mathrm { lb }$
C) $136.5 \mathrm { ft } - \mathrm { lb }$
D) $3854 \mathrm { ft } - \mathrm { lb }$

Question

Quizplus · Accepted Answer

The work done is calculated using the formula $ W = F \cdot d \cdot \cos(\theta) $. Here, $ F = 57 $ pounds, $ d = 70 $ feet, and $ \theta = 20^\circ $. So, $ W = 57 \cdot 70 \cdot \cos(20^\circ) \approx 3749.4 \mathrm{ft} - \mathrm{lb} $.

Solve the Problem -A Person Is Pulling a Freight Cart 20∘20 ^ { \circ }20∘

Solve the Problem
-A Person Is Pulling a Freight Cart $20 ^ { \circ }$