Asked by Phil

An object falls from rest. While falling it changes its speed by 10 meters per second every second. Calculate how far it has fallen, in meters, after falling for 4 seconds. However, do not put the units in the box below.

Answers

Answered by Damon
a = 10 m/s^2
v = a t = 10 t
x = (1/2) a t^2 = 5 t^2
so if t = 4
x = 5 (16)
= 80
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