Problem 10:
A fire breaks out on a high rise building and a rescue helicopter is called to the scene.
The helicopter is equipped with a rescue basket attached by a strong cable to a winch
on the helicopter. The rescue basket is lowered to the roof and some occupants of the
top floor escape to the roof and enter the basket. As the helicopter takes off, the cabl
momentarily makes a 78.29 angle to the horizontal, imparting a slight horizontal
acceleration to the 621-kg basket and occupants across the roof top. The coefficient
friction between the basket and the roof top is 0.568 and the tension in the cable is
4980 N. Determine the acceleration of the basket and occupants. (Suggestion: Begin
with a free body diagram.)