Question

Refer to the diagram shown here (a side view, not to scale). Two blocks with masses m, and m,, respectively, are connected via a massless thread over a pulley wheel. The wheel is a solid, uniform disk with mass m, outer radius R, and a frictionless axle. Initially you hold m, (and therefore the entire system) at rest in the position shown; m, is at rest on level ground. Then you release m, The data: m,7.16 kg m, 345 kg m, 2.63 kg R-5.10 cm H-27.4 cm g 9.80 m/s By what percentage does the tension force acting on m, change when you release m? a. b. How fast, measured in rpm, is the wheel spinning when m reaches the surface? You may ignore air drag. (ground)
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Answer #1

F.B.D n ma is on hold | Net force on m=0| → T = mig = 7.16X9.8=701168N when mz is released we have by New tors law mig-T, =

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