Q. The largest gorilla on earth, with a mass of about 3.1 x 10^2 kg was hanging from two vines; each made an angle of thirty degrees with the vertical. Determine the magnitude of the force of tension of each vine. What would happen to the tensions if the upper ends of the vines where farther apart?
Q. As part of a safety investigation, two 1900 kg cars travelling at 19 m/s are crashed into different barriers. Determine the average forces exerted on (1) car that hits a line of water barrels and takes 1.7 s to stop, and (2) car that hits a concrete barrier and takes 0.2 s to stop.