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A physics TA pushes a 20.0-kg equipment cart at a constant velocity a distance of 24.0 m down the hall. The force she exerts on the cart is directed at an angle 26.0° below the horizontal and force of friction opposing the motion of cart is 42.0 N. Determine the following.
(a) magnitude of the force exerted on the cart by the TA
N
(b) work done by the force the TA exerts on the cart
J
(c) work done by the force of friction acting on the cart
(d) work done by the force of gravity acting on the cart
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