A 400-Kg Box Is Lifted Vertically Upward with Constant Velocity

question 164

Multiple Choice

A 400-kg box is lifted vertically upward with constant velocity by means of two cables pulling at 40.0° on either side of the vertical direction.What is the tension force that each cable exerts on the box?

• A)231 N
• B)400 N
• C)800 N
• D)2560 N
• E)3920 N

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