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How fast is a ball going when it hits the ground after being dropped from a
height of 13 m? The acceleration of gravity is 9.8 m/s2

Respuesta :

R0kia

Answer:

16 m/s.

Explanation:

potential energy = kinetic energy.

mgh = ½mv².Cancelling m from both sides,

gh = ½ v².

9.8*13 = ½ v²

2(127.4) = v²

v² = 254.8

v = √254.8

v = 15.96 ~ 16m/s.

Onoriodefelix

Answer:

v = 16.1 m/s

Explanation:

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