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September 1, 2014

Homework Help: Physics

Posted by Lilly on Monday, March 19, 2012 at 4:12am.

Two blocks are connected by a light string that passes over a frictionless pulley as in the figure below. The system is released from rest while m2 is on the floor and m1 is a distance h above the floor.

(a) Assuming m1 > m2, find an expression for the speed of m1 just as it reaches the floor. (Use any variable or symbol stated above along with the following as necessary: g.)

(b) Taking m1 = 6.1 kg, m2 = 4.5 kg, and h = 3.1 m, evaluate your answer to part (a).

(c) Find the speed of each block when m1 has fallen a distance of 1.2 m.

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