Question

a body is moving along a straight line with uniform acceleration ‘a’ and initial velocity 'u‘ the body reduce its velocity to one fourth of its initial velocity calculate the total time of the motion of the body​

Answer 1

DEAR,

TIME HERE INVERSELY  PROPORTIONAL TO ACCELERATION AND DIRECTLY PROPORTIONAL TO INITIAL VELOCITY.

USING FIRST EQUATION OF MOTION :

T=(3/4) X (U/A)

MARK IT AS BRAINLIST ♥

Answer 2

Initial velocity=u

Final velocity=u/4

Acceleration=a

Time=?

Acceleration=(Final velocity-Initial velocity)/Time

a=((u/4)-u)/t

a=((u-4a)/4)/t

at=-3a/4

t=-3a/4a