Question

A ball is thrown upward with a velocity of 30m/s. What will be the maximum height and the total time of flight(if G=10m/s)

Answer 1

Sry i don't know what is the answer...hope it won't help u...

Answer 2

hi there mate!!!

Solution:

the initial velocity= u is 30m/s.

s= height=?

time= t=?

1.

now,

according to the first equation of motion,

let g= -10 as motion is in opposite direction.

v= u+ gt

here,

0= 30+ -10× t

-30= -10t

-30/-10= t

3= t.

therefore,

time= 3 seconds.

substituting the value of time in second equation of motion,

s= 1/2×gt^2

s= 1/2×(-10)×9

= -5×9

= -45 m

hope this helps!!!☺