Question

A student decides to move a box of books into her dormitory room by pulling on...

A student decides to move a box of books into her dormitory room by pulling on a rope attached to the box. She pulls with a force of 22 N at an angle of 19 degrees relative to the horizontal. The box has a mass of 8 kg and the coefficient of kinetic friction between the floor and box is 0.59.

  1. Calculate the acceleration of the box.
  2. The student now starts moving the box up a 49 degree incline, keeping her 22 N force at 19 degree above the line of the incline. If the coefficient friction is still 59, calculate the new acceleration.

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Answer #1

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