I would like to get explanation and solution for these questions thanks!
Consider the system shown in the figure with m1 = 24 . 00 kg , M2 = 13. 20 kg , R = 0. 12 m , and the mass of the uniform pulley M = 5 . 00 ky . Object mz is resting on the floor ,*and object in1 is 4 . 30 m above the floor when it is released from rest . The pulley axis is frictionless . The cord is light , does not stretch , and does not slip on the pulley ."( a ) Calculate the time interval required for my to hit the floor .( b ) Calculate the time interval required for me to hit the floor if the pulley were massless ?5 A car traveling on a flat ( unbanked ) circular track accelerates uniformly from rest with a tangential acceleration of 2 . 10 m/s ? . The car makes it one quarter of the way aroundthe circle before it skids off the track . Determine the coefficient of static friction between the car and track from these data .