Question

An object is dropped from a height of 25 meters. At what velocity will it hit the ground?
a 7.0 m/s
b 11 m/s
c 22 m/s
d 49 m/s
e 70 m/s

Answer 1

c. 22m/s \[\sqrt{2\times9.8\times25}\]

Answer 2

To find the final velocity for a falling object, we actually get it from total energy for a falling object, \[v_f = \sqrt{2gh}\]

Answer 3

We know the formula
v^2=u^2+2*g*h

Answer 4

v=?

Answer 5

Given
u=0
g=9.8m/s
h=25m