Question

How FAST will a rock be traveling after 13 seconds of free fall? Assume it started from rest. *
This is asking you how FAST (a speed). You should NOT be using d = 1/2 at^2 here!

Answer 1

Answer:

Given

initial velocity (u) =0

acceleration (g) = 10 m/s^2

time(t)=13s

final velocity (v) =?

$we \: know \: that \\ v = u + at \\ v = 0 + 10(13) \\ v = 130m {s}^{ - 1}$