Question

3. Which machines will you use to do
the following work? Write their
types.
(a) To remove the lid of a tin.
(b) To lift bricks to the top of a tall
building
(c) To cut vegetables,
(d) To draw water from a well.
(e) To hold a papad for roasting it.​

Answer 1

Answer:

Answer: (a) To remove the lid of a tin, we should use an opener which is a second order lever. (b) To lift bricks to the top of a tall building, we should use a crane which is a pulley.

Explanation:

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Answer 2

Answer:

(a) To remove the lid of a tin, we should use an opener which is a second order lever.

(b) To lift bricks to the top of a tall building, we should use a crane which is a pulley.

(c) To cut vegetables, we should use a knife which is a wedge.

(d) To draw water from a well, we should use a pulley system or wheel-axle.

(e) To hold a papad for roasting it, we should use a tong which is a third order lever.

Explanation:

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