Subjective Type

Explain why, the tip of a sewing needle is sharp.

Solution

The tip of the sewing needle is sharp so that due to its sharp tip, the needle may put the force on a very small area of the cloth, producing a large pressure sufficient to pierce the cloth being stitched.

SIMILAR QUESTIONS

Fluid Mechanics

On what factors does the effect of thrust on a surface depend?

Fluid Mechanics

Name two factors on which the pressure on a surface depends.

Fluid Mechanics

A sharp pin works better than a blunt pin. explain the reason.

Fluid Mechanics

Why is the bottom part of foundation of building made wider ?

Fluid Mechanics

It is easier to cut with a sharp knife than with a blunt one. explain.

Fluid Mechanics

Explain the following : $$ (a) $$ Sleepers are used below the rails $$ (b) $$ A tall building has wide foundations.

Fluid Mechanics

Why does a sharp knife cut objects more effectively than a blunt knife?

Fluid Mechanics

Explain why, wooden (or concrete) sleepers are kept below the railway line.

Fluid Mechanics

Explain why, a wide steel belt is provided over the wheels of an army tank.

Fluid Mechanics

When is the pressure on the ground more-when a man is walking or when a man is standing? Explain.

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