Question

OD
Clear selection
16
2 points
A ball is thrown vertically upward and it reaches a height of 90 m. Find the
velocity with which it was thrown.
1. Add file
17
2 points​

Answer 1

Answer:

whom know the answer for it.

it's difficult to answer.

Answer 2

Explanation:

S = 90 m

V = 0 m/s

U = ?

g = -9.8 (ball is going against gravity)

2as = v² - u²

2gs = v² - u²

2 (-9.8) (90) = 0 - u²

180 × (-9.8) = -u²

18 × (-98) = -u²

-1764 = -u²

1764 = u²

√1764 = u

42 = u

Thus, initial velocity (u) = 42 m/s