Question

Velocity of a body moving a straight line with unigorm acceleration reduces by 3/4 of its initial velocity in tme t0. The total time of motion of the body till its velocity becomes zero is

Answer 1

v = u +at
v = 3/4u
t= t0
hence a is -u/4t0
now let v become 0, now find t
t is -u/a
subs value of a found earlier
ans is 4t0