Question

A pulley system is used in an auto repair shop to lift a 200 kg engine block 1.5 m out of a car. The lower pulley is attached directly to the engine block, and there are 8 strands of rope attaching the lower pulley to the upper pulley. The repairman pulls through 12 m of rope in the process of lifting the engine block. How much work is done during this process

Answer 1

For a pulley system is used in an auto repair shop to lift a 200 kg engine block 1.5 m out of a car, work is done during this process is mathematically given as

w=3000J

What is the work is done?

Generally, the equation for work done is mathematically given as

W=mgh

Therefore

W=200*10*1.5

w=3000J

In conclusion, work done

w=3000J

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