posted by Tanya .
A box of books weighing 324 N is shoved
across the floor by a force of 527 N exerted
downward at an angle of 35 below the hori-
The acceleration of gravity is 9.81 m/s2 .
If μk between the box and the floor is 0.59,
how long does it take to move the box 4.35 m,
starting from rest?