Q. A pendulum has a length L = 1.22 m. It hangs straight down in a jet plane about to take off as shown by the dotted line. The jet accelerates uniformly, and during that time, the pendulum oscillates about the equilibrium position shown by the solid line, with D = 0.300 m. Calculate the magnitude of the plane's acceleration.
Q. On a level road with its brakes on, a car traveling at 93 km/hr stops within 87 m when the brakes lock and the car slides.