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If you drop a rock from a great height, about how fast will it be falling after 5 seconds, neglecting air resistance?.

Sagot :

Answer:

v = 49.05 m/s^2

Explanation:

Let's use the uniform acceleration equation to find our final velocity.

[tex]v = u + at[/tex]

v = final velocity

u = initial velocity

a = gravitational acceleration

t = time taken

Assuming the rock is at rest initially, u becomes zero.

[tex]v = 0 + 9.81(5)[/tex]

[tex]v = 49.05 m/s^2[/tex]