CK-12-Physics - Intermediate

(Marvins-Underground-K-12) #1

http://www.ck12.org Chapter 6. Work and Energy


FIGURE 6.6


FIGURE 6.7


FIGURE 6.8


In theFigure6.8, forceFhas the magnitude of 300 N and makes a 25.0-degree angle with the floor. Care must be
taken in computing the work the girl does on the block. The force she is applying to move the block is not directed
in the direction the block will move. We must find the component of the force acting parallel to the floor. Using
vector resolution, we find:

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