Question

PLZ ANSWER THIS
A ball is thrown vertically upward with the with the velocity of 20 metres per second calculate the maximum height attained by the ball

THANK YOU​

Answer 1

Answer :-

h = 20 m

Given :-

u = 20 m/s

v = 0 m/s

g = 10 m/s²

To find :-

The maximum height attained by the body :-

Solution:-

Since, The body is thrown vertically upward hence it's final velocity will be 0.

By using equation of motion:-

→$\huge \boxed{ 2gh = v^2 - u^2 }$

→$-2gh = (0)^2 - u^2$

→$h = \dfrac{-u^2}{-2g}$

Maximum height attained by the body under the influence of gravity is given by :-

→$\huge \boxed{h =\dfrac{ u^2 }{2g }}$

→$h = \dfrac{(20)^2}{2 \times 10}$

→$h = \dfrac{400}{20}$

→$h = 20 m$

hence,

Maximum height reached by the ball is 20 m.

Answer 2

Answer:

velocity u= 20ms^-1

height= ?

gravity = 10ms^-2

for max height s=0

v^2= u^2 +2gS (a=g)

0^2=(20)^2 +2×9.8× S

S= -1000//g= -20.41 (~)

Max height= 20m