Why is it easier to fetch water from a well using a pulley?

Because rolling friction is lesser than sliding friction

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Weight of bucket increases while pulling up

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While pulling up the bucket feels a pseudo acceleration in the downward direction which increases the total weight.

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While pulling up you are pulling bucket's weight and your hand's against gravity while using pulley you are effectively pulling only the weight of the bucket - the weight of your hand.

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Solution

The correct option is D
While pulling up you are pulling bucket's weight and your hand's against gravity while using pulley you are effectively pulling only the weight of the bucket - the weight of your hand.

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Similar questions

Q. Pulley is used to pull water from a well.

Q. It is easy to draw water from a well when the rope passes over a pulley than drawing it directly. Because :

Give reasons why :

(a) Travelling bags have wheels.

(b) Iron pipes are fitted on an inclined plane for pushing up heavy loads.

(d) We should use a pulley to draw water from a well.

Q. Observe pictures 1 and 2. In the pictures, children are pulling the buckets from the well. Can you tell the difference in both the pictures? Which would be easier – using the pulley or not using it to lift things?

❉ From where do the people in Madho’s village fetch water for drinking?

❉ Who fetches water in Madho’s house?

❉ Water collected in the tanka is mostly used for drinking. Why?

❉ Is rainwater collected in your house as well? If yes, how?

❉ Can there be any other method of collecting water ?

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