Question

why does a spanner have a long handle?

Answer 1

Spanner has a long handle to create a huge turning effect or moment resulting in easier work.

Answer 2

Answer : The turning effect of force is called "MOMENT OF FORCE".

Moment of force = force × perpendicular distance.
= F×d
★For the spanner with a long handle ,'d' is large.
★ Therefore , the moment of force is also large
★Hence, it is easier to rotate the object (nut).

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