A woman is straining to lift a large crate,without success.It is too heavy.We denote the forces on the crate as follows: P is the upward force being exerted on the crate by the person,C is the contact force on the crate by the floor,and W is the weight of the crate.
How are the magnitudes of these forces related,while the person is trying unsuccessfully to lift the crate?
A) P + C = W
B) P + C < W
C) P + C > W
D) P = C
Correct Answer:
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