# physics

posted by
**scott**
.

A student moves a box of books down the hall

by pulling on a rope attached to the box. The

student pulls with a force of 173 N at an angle of 27.5 above the horizontal. The box has a

mass of 27 kg, and μk between the box and

the floor is 0.2.

The acceleration of gravity is 9.81 m/s2 .

Find the acceleration of the box.

Answer in units of m/s2