Q1. A loudspeaker of mass 15.0 is suspended a distance of h = 2.30 below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.30. What is tension in each cable?
Q2. In a head-on collision, a car stops in 0.27 from a speed of 14. The driver has a mass of 70, and is, fortunately, tightly strapped into his seat. What force is applied to the driver by his seat belt throughout that fraction of a second?