Each of the gears a and b has a mass of 675 g and has a radius of gyration of 40 mm, while gear c has a mass of 3.6 kg and a radius of gyration of 100 mm. assume that kinetic friction in the bearings of gears a, b, and c produces couples of constant magnitude 0.15 n·m, 0.15 n·m, and 0.3 n·m, respectively. knowing that the initial angular velocity of gear c is 2000 rpm, determine the time required for the system to come to rest.

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Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

You need to calculate the string in between two masses