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| 1. |
a particle ,initially at rest starts moving with a uniform accelaration 'a'.the ratio of the distances covered by it in first second and the first 3s is |
| Answer» FRICTION is a force which opposes the motion of a BODY. The magnitude of friction in a wood DEPENDS on its SURFACE. If the surface is rough, it provides more friction and if it is smooth it provides less friction. So it is friction which helps a SAW to cut a woExplanation: | |