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OTE |, ee lim, , “at 70 on approaches to zero, ro oF, , Instantaneous speed, Vi, , e, The limit At > 0, is read as At tends to 7, , ‘ t, y ct to time, ex is the derivative of x with resP©, , dt, , Velocity body to the time taken to, It is defined as the ratio of displacement of 0S, , cover this displacement., , or, , Velocity is defined as the rate of displacement., Formula for velocity, , i t, Velocipe Displacemen, , Time, , 1) Velocity is a vector quantity, 2) Its SI unit is ms", , 3) _ Its dimensional formula is [M°L'T7], 4) It may be zero, positive or negative ., , Types of velocity, , 1) Uniform velocity., , 2) Non-uniform velocity or Variable velocity, 3) Average velocity., , 4) Instantaneous velocity., , Uniform Velocity, The velocity of a body is said to be uniform, if it covers e, , . : qual displacements in, equal intervals of time , however small the intervals may be, , Non-uniform Velocity or Variable Velocity, , The velocity of a body is said to be NOn-uniform if, : : ae, displacements in equal intervals of time, however small inte, , T covers Unequal, , "vals