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Q1. At a construction site, a 22 {rm kg} bucket of concrete is connected over an extremely light frictionless pulley to a 375 {rm N} box on the roof of a building. There is no appreciable friction on the box, as it is on roller bearings. The box starts from rest. Find out the acceleration of the bucket.

Q2. A hollow aluminium cylinder 20 cm deep has an internal capacity of 2.000 L at 20.00C. It is completely filled with turpentine and then warmed to 80.00C. (i) How much turpentine overflows? (ii) If it is then cooled back to 20.00 C, how far below the surface of cylinder's rim is the turpentine surface?

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