Question

A force is applied to a bead as the bead is moved along a straight wire

A force is applied to a bead as the bead is moved along a straight wire through displacement +5.0 cm. The magnitude of is set at a certain value, but the angle fbetween and the bead's displacement can be chosen. Figure 7-23

gives the work W done by on the bead for a range of f values; W0 = 25 J. How much work is done by if f is (a) 66° and (b) 148°?

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