Question

A body is projected vertically upwards with a velocity of 19.6 m/s reaches a height of 19.8 m on earth. If it is projected vertically up with the same velocity on moon, then the maximum height reached by it is

Answer 1

Hi friend
we will be using formula 
v2 =u2 +  2gs
where v is final velocity u is initial velocity g is gravitational acceleration and s is the height
substituting values
02 = 19.6 * 19.6 + 2 * 1.6 * s.........(as gravitational acceleration on moon is 1.6m/s2
0  =  384.16 + 3.8s
therefore
s  =  384.16 / 3.8
s   = 101m
hence maximum height reached by the object is 2m on moon

HOPE THIS HELPS 
PLZZZZZ MARK BRAINLIEST

Answer 2

Hi Friend
______________________________________________________________
velocity on earth = 19.6 m/s 
height                   = 19.8 m 
______________________________________________________________
v^2- u^2       = 2 a s
(19.6 )^2       = 2 x a x 19.8 
384.16 /19.8 = 2 x a 
19.4              = 2 a
a                   =  19.4/2
a                  = 9.7 m s^-2
so the acceleration  due to gravity is 9.7 on earth 
___________________________________________________________
On moon :
v^2-u^2      = 2as 
(19.6 )^2     = 2 x 9.7/6  x s 
384.16         = 2 x 1.61   x s 
384.16         = 3.23         x s 
384.16/3.23 = s
118.93 m     = s