Question

How fast isn’t a ball going when it hits the ground after being dropped from a height of 9 m? the acceleration of gravity is 9.8 m/s2

Answer 1

For me i think the answer will be 13.72m/s

Answer 2

Answer:13,3 m/s

Explanation:We can use the Torricelli equation:

v^2=v0^2+2ah

the initial velocity is 0

v0^2=0

so:

v^2=0+2*9,8*9

v^2=176,4

v=13,3 (approx)