A 31 kg skip attached to a steel rope on a crane is used to hoist bricks from the ground to the top of a construction site. The steel rope is wound onto a lifting drum with a diameter of 700 mm and rotational frequency of 80 revolutions per minute. The lifting drum is situated on the top floor which is 195 m high. Calculate the total work done (in joules) to lift the 20 bricks from the bottom to the top of the building.
A 31 kg skip attached to a steel rope on a crane is used to hoist bricks from the ground to the top of a construction site. The steel rope is wound onto a lifting drum with a diameter of 700 mm and rotational frequency of 80 revolutions per minute. The lifting drum is situated on the top floor which is 195 m high. Calculate the total work done (in joules) to lift the 20 bricks from the bottom to the top of the building.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A 31 kg skip attached to a steel rope on a crane is used to hoist bricks from the ground to the top of a construction site. The steel rope is wound onto a lifting drum with a diameter of 700 mm and rotational frequency of 80 revolutions per minute. The lifting drum is situated on the top floor which is 195 m high. Calculate the total work done (in joules) to lift the 20 bricks from the bottom to the top of the building.
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