Question

the velocity of a body moving along a straight line with uniform acceleration a reduces by 3/4 of its initial velocity.the total time of motion is?

Answer 1

Answer:

Time = (-3/4a)  times of Initial Velocity

Explanation:

the velocity of a body moving along a straight line with uniform acceleration a reduces by 3/4 of its initial velocity.the total time of motion is?

Let say Initial Velocity = 4V

Velcoity Reduces by 3/4  =  (3/4)4V = 3V

Velocity at That Moment = 4V - 3V = V

Using V = U + aT

here V = V    & U = 4V      a = a    T = >

V = 4V  +  aT

=> T  = -3V/a = (-3/4)4V/a   = (-3/4a)(4V)

=> Time = (-3/4a)  time sof Initial Velocity