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OpenStudy (anonymous):
A worker pushes a 7 kg box along a roller track. Assume friction is small enough to be ignored because of the rollers. The worker's push is 25 N directed down and to the right at an angle of 20 degrees. Determine the horizontal-component of the workers push. Write a net force equation for the horizontal forces on the block. Determine the acceleration of the block. Determine the normal force on the block.
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