A woman exerts a constant horizontal force on a large box. As aresult, the box m

Question

A woman exerts a constant horizontal force on a large box. As aresult, the box moves across a horizontal floor at a constant speedv0. The constant horizontal force supplied by the woman

A)has the same magnitude as the weight ofthe box.
B)is greater than the weight of thebox.
C)has the same magnitude as the total forcewhich resists the motion of the box.
D)is greater than the total force which resiststhe motion of the box.
E)is greater than either the weight of the boxor the total force which resists its motion. Hint: Constant velocityimplies no acceleration. No acceleration implies no netforce.

A)has the same magnitude as the weight ofthe box.
B)is greater than the weight of thebox.
C)has the same magnitude as the total forcewhich resists the motion of the box.
D)is greater than the total force which resiststhe motion of the box.
E)is greater than either the weight of the boxor the total force which resists its motion. Hint: Constant velocityimplies no acceleration. No acceleration implies no netforce.
Hint: Constant velocityimplies no acceleration. No acceleration implies no netforce.

Explanation / Answer

     If the system moving with constantvelocity then the net force on the system is ZERO      So the applied force must be equal to theresistive force      So correct option is (C)

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