### Home > PC > Chapter 10 > Lesson 10.1.4 > Problem 10-55

10-55.

Review your work from problem 10-51.

work = (force) · (distance)

Which component of the given vector is actually moving the box forward?

Find the magnitude of the horizontal component of the given vector.

Since this is a 30°-60°-90° triangle, *y* = 25 and *x* = 25√3.

work = (25√3 pounds)(10 feet) = 433 foot-pounds