MY NOTES A block of mass m, = 34 kg on a horizontal surface is connected to a mass m, = 22.6 kg that hangs vertically as shown in the figure below. The two blocks are connected by a string of negligible mass passing over a frictionless pulley. The coefficient of kinetic friction between m, and the horizontal surface is 0.28. m (a) What is the magnitude of the acceleration (in m/s2) of the hanging mass? m/s2 (b) Determine the magnitude of the tension (in N) in the cord above the hanging mass.A spherical raindrop 1.7 mm in diameter falls through a vertical distance of 4700 m. Take the cross-sectional area of a raindrop = x2, drag coefficient = 0.45, density of water to be 1000 kg/m, and density of air to be 1.2 kg/m. (a) Calculate the speed a spherical raindrop would achieve falling from 4700 m in the absence of air drag. m/s (b) What would its speed be at the end of 4700 m when there is air drag? (Note that the raindrop will reach terminal velocity after falling about 30 m.) m/s 12 Tutorial