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Why does a spanner have a long handle?the mats used in gyms and the padding used in sports uniforms are made up of soft substances.why are rigid materials

not used?


Spanner has long handle as the torque produced in rotating it is large even for small force applied as torque= force * perpendicular length
soft substances are used to reduce the rate of change of momentum of the people when they fall etc. this is because of Newton s second law
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