The sparks produced during sharpening of a knife against a grinding wheel leaves the rim of the wheel tangentially. This is due to which of the following?

Inertia of rest

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Inertia of motion

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Inertia of direction

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Force applied

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Solution

The correct option is C Inertia of direction
Just after the sparks are produced, the force acting on the sparks becomes zero and due to inertia of direction, they start to move in their initial direction of motion which is tangential to the rim of the grinding wheel.

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Similar questions

A blacksmith grinds the edges of an iron axe against a spinning wheel to sharpen it. Sparks of fire and heat are generated. We can say that it is a:

	Group I		Group II
P.	Dressing	1.	Blunting of grinding wheels
Q.	Loading	2.	Shaping of grinding wheels
R.	Glazing	3.	Sharpening of grinding wheels
S.	Trueing	4.	Clogging of grinding wheels

1 / π

2.5 r e v / s e c

40 N

0.2

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