Angle of Friction

Angle between resultant of limiting friction and normal reaction to that of normal reaction

Friction

Opposing force when one body slides over another body’s surface

Lami’s Theorem

Three forces are said to be in equilibrium when each force is proportional to the sine of the other two forces

Impulse

Average force acting during the impact and the time for which it lasts

Newtons IInd Law

Rate of change of momentum is directly proportional to the external force applied in the direction of force

Newtons Ist Law

Every body continues to be in rest or uniform motion unless compelled by external force

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