A box full of precious gems, that weights 100 Newtons, is pulled through a tunnel using a
motor attached to a rope. The motor can pull with a force of 24 N. The box usually has 15 N
of friction when dragged ground in the tunnel. The tunnel is 130 meters long. When the box
of gems reaches the end of the tunnel, it is moving at 15.1 m/s (about 30 mph) after the 17.2
second journey.
A. What is the Net Force on the box?
B. Using the Net Force, what is the total work done on the box?
C. What is the power to move the box?
D. What is the average acceleration on the box?
E. Is the box in equilibrium while moving along the tunnel? Explain your reason for this
answer using complete sentences.
(6 Points)
.