Question

a
A stone is thrown in a vertically upeword dixedon with
velocity of sm is if the acceleration of the stone during its
motion is to m/s2 is the downward direction. What will be
the height stained by lau sten est how much time willit
take to reach there?​

Answer 1

Answer:

Let u be the initial velocity and h be the maximum height attained by the stone.

v

1

2

=u

2

−2gh,

(10)

2

=u

2

−2×10×

2

h

100=u

2

−10h ....(i)

Again at height h,

v

2

2

=u

2

−2gh

(0)

2

=u

2

−2×10×h

u

2

=20h ... (ii)

So, from Eqs. (i) and (ii) we have

100=10h

h=10m