A skier starts from rest and uniformly accelerates at 2 m/s2 down a slope. How far has the skier traveled at the end of 20 seconds?

400 meters

Explanation:

In order to solve this problem, you will want to use an equation to solve for displacement with the ability to calculate with an object at rest. The equation that works best for this is d = 1/2 at².

In the word problem, we were given the following information:

a = 2 m/s²

t = 20 seconds

Now we can plug those values into the equation and solve for d.

d = 1/2 at²

d = 1/2 (2 m/s²) (20 seconds) ²

d = 1/2 (2) (400)

d = 1/2 (800)

d = 400 meters