Tuesday

March 31, 2015

March 31, 2015

Posted by **/** on Friday, April 5, 2013 at 1:13am.

a) What condition must be satisfied by all the force acting on the box so that it remains at rest? Draw a vector diagram that illustrates how the forces must combine to satisfy this condition.

b) Suppose the box has weight W = 100 N and the friction force magnitude f is 80% of the normal force magnitude N. That is, f = 0.8N. If the person pushes down at an angle of θ = 35◦ determine the magnitude of the force F the person exerts on the box.

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