Question

A stone is thrown in a vertically upward direction with a velocity of 5ms if the acceleration of the stone during it's motion is 10ms in the downward direction what will be the height attained by the stone and how much time it will take to reach there​

Answer 1

Answer:

0.5sec

Explanation:

I have given the image there

Answer 2

Given

a=-10m/s²

u=5m/s

v=0

v²-u²=2as

0-25=2{-10}s

-25=-20s

s=25/20=5/4m

s=ut+1/2at²

5/4=5t+1/2{-10}t²

5t-5t²=5/4

5{t-t²}=5/4

t-t²=1/4

t-t²-1/4=0

-t²+t-1/4=0

-t²+1/2t+1/2t-1/4=0

-t{t-1/2}+1/2{t-1/2}=0

(-t+1/2)(t-1/2)=0

t=1/2s

HOPE ITHELPS U