Use the worked example above to help you solve this problem. Twoblocks with masses m1 = 4.73 kg and m2 = 7.38 kg are attached by astring as shown in figure a, over a pulley with mass M = 1.79 kg.The pulley, which turns on a frictionless axle, is a hollowcylinder with radius 0.0590 m over which the string moves withoutslipping. The horizontal surface has coefficient of kineticfriction 0.351. Find the speed of the system when the block of massm2 has dropped 2.02 m.
= m/s
EXERCISE HINTS: THIS IS WHAT I REALLY NEED HELP ON!!
Two blocks with masses m1 = 1.90 kg and m2 = 9.30 kg are attachedover a pulley with mass M = 3.20 kg hanging straight down as inAtwood's machine (see figure b). The pulley is a solid cylinderwith radius 0.0540 m, and there is some friction on the axle. Thesystem is released from rest, and the string moves without slippingover the pulley. If the larger mass is traveling at a speed of 2.04m/s when it has dropped 1.00 m, how much mechanical energy was lostdue to friction in the pulley's axle?
Wnc = J
Hint: This exercise is slightly easier than the associated examplebecause the friction force need not be determined.
Use the worked example above to help you solve this problem. Twoblocks with masses m1 = 4.73 kg and m2 = 7.38 kg are attached by astring as shown in figure a, over a pulley with mass M = 1.79 kg.The pulley, which turns on a frictionless axle, is a hollowcylinder with radius 0.0590 m over which the string moves withoutslipping. The horizontal surface has coefficient of kineticfriction 0.351. Find the speed of the system when the block of massm2 has dropped 2.02 m.
= m/s
EXERCISE HINTS: THIS IS WHAT I REALLY NEED HELP ON!!
Two blocks with masses m1 = 1.90 kg and m2 = 9.30 kg are attachedover a pulley with mass M = 3.20 kg hanging straight down as inAtwood's machine (see figure b). The pulley is a solid cylinderwith radius 0.0540 m, and there is some friction on the axle. Thesystem is released from rest, and the string moves without slippingover the pulley. If the larger mass is traveling at a speed of 2.04m/s when it has dropped 1.00 m, how much mechanical energy was lostdue to friction in the pulley's axle?
Wnc = J
Hint: This exercise is slightly easier than the associated examplebecause the friction force need not be determined.
