
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