Two objects are connected by a light string passing over a light, frictionless pulley as shown in the figure below. The object of mass m1 = 5.20 kg is released from rest at a height h = 4.40 m above the table. Two objects are connected by a taught string passing over a pulley. An object labeled m2 rests on a table, and an object labeled m1 dangles a distance h above the table. (a) Using the isolated system model, determine the speed of the object of mass m2 = 3.00 kg just as the 5.20–kg object hits the table. m/s (b) Find the maximum height above the table to which the 3.00–kg object rises.

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Q: 20° 2.0 kg

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.