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OpenStudy (anonymous):
Applying a 21.6 N force downward at an angle of 67.2 with the horizontal to displace a broom a distance of 6.28m. How much work is being done?
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OpenStudy (s3a):
The force considered must be along the same line as the distance travelled. Therefore, F_x = Fcos(theta) = 21.6cos(67.2deg) W = F_x * deltaX W = [21.6N cos(67.2deg)][6.28m - 0m] W = 52.6 J
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