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MBA.Graduate Psychology,PHD in HRM
Strayer,Phoniex,
Feb-1999 - Mar-2006
MBA.Graduate Psychology,PHD in HRM
Strayer,Phoniex,University of California
Feb-1999 - Mar-2006
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4 • A block of mass m is at rest on a plane that is inclined at an angle of30º with the horizontal, as shown in Figure 5-56. Which of the following statements about the magnitude of the static frictional force fs is necessarily true?(a) fs > mg. (b) fs > mg cos 30º. (c) fs = mg cos 30º. (d) fs = mg sin 30°. (e) None of these statements is true.
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