A string is wound tightly around a fixed pulley whose radius is 5.0 cm. As the string is pulled, the
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A. 4500*sin78=4401 N
b. 4500*cos78 = 935 N
c. this one is from geometry.
Two forces 4500N and 686N with the angle 78+90=168 in btw of them
Net force =
= 3831 N
b. 4500*cos78 = 935 N
c. this one is from geometry.
Two forces 4500N and 686N with the angle 78+90=168 in btw of them
Net force =