Average velocity of a particle moving in a straight line, with constant acceleration a and initial velocity `u` in first `t` seconds is.

Options

A. ` u+ (1)/(2) at `
B. ` u+ at`
C. ` (u+ at)/(2) `
D. ` (u)/(2) `

Answer

A

Explanation

Avg .velocity =`("displacement ")/("time taken ") rArr " "V_(avg) =(u t +(1)/(2) a t^(2))/(t) =u+ (1)/(2) a t`