A traveler pulls on a suitcase strap at an angle 36° above the horizontal. If $555 \mathrm {~J}$ of work are done by the strap while moving the suitcase a horizontal distance of $15 \mathrm {~m} ,$ what is the tension in the strap?
A)46 N
B)37 N
C)52 N
D)56 N

Question

Quizplus · Accepted Answer

The work done by the strap is equal to the force applied times the distance moved in the direction of the force. In this case, the distance moved in the direction of the force is the horizontal distance of 15 m. Therefore, the tension in the strap is:$$W = Fd$$$$F = \frac{W}{d} = \frac{555 \mathrm {~J}}{15 \mathrm {~m}} = 37 \mathrm {~N}$$

A Traveler Pulls on a Suitcase Strap at an Angle 555 J555 \mathrm {~J}555 J

A Traveler Pulls on a Suitcase Strap at an Angle $555 \mathrm {~J}$