A construction worker pulls a box of tools on a smooth horizontal floor with a force of 100 N in a direction of 37.0° above the horizontal. The mass of the box and the tools is 40.0 kg
(a) Draw a free-body diagram for the box.
(b) Calculate the acceleration of the box.
(c) How hard does the floor push up on the box?
What will be an ideal response?
Answer:
(a) The box is acted on by the force of gravity which points downward toward the center of the earth. The normal force is directed toward the box perpendicular to the surface of the floor. The pulling force is directed away from the box at an angle 37.0 degrees above the horizontal.
(b) 2.00 m/s2
(c) 332 N
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