A light, inextensible cord passes over a light, fictionlesspulley with a radius

Question

A light, inextensible cord passes over a light, fictionlesspulley with a radius of 6.2cm. It has a(n) 19 kg mass on the leftand a(n) 19 kg mass on the left and a(n) 4.4 kg mass on the right,both hanging freely. Initially their center of masses are a vertical distance 3.6m apart. The acceleration of gravity is9.8m/s2. At what rate are the two masses accelerating when they passeach other? Answer in units of m/s2 A light, inextensible cord passes over a light, fictionlesspulley with a radius of 6.2cm. It has a(n) 19 kg mass on the leftand a(n) 19 kg mass on the left and a(n) 4.4 kg mass on the right,both hanging freely. Initially their center of masses are a vertical distance 3.6m apart. The acceleration of gravity is9.8m/s2. At what rate are the two masses accelerating when they passeach other? Answer in units of m/s2 At what rate are the two masses accelerating when they passeach other? Answer in units of m/s2

Explanation / Answer

   m1 = 19 kg    m2 = 4.4 kg     g = 9.8 m/s^2       acceleration, a = netforce / total mass = ( m1 - m2 ) g / (m1 + m2 ) = 14.6 ( 9.8 ) / 23.4 = 6.11m/s^2

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