Astone that starts at rest free falls for 7.0 s. how far does the stone fall in this time?
a.
+2.4 x 102 m
c.
+3.4 x 101 m
b.
-3.4 x 101 m
d.
-2.4 x 102 m

Gravity = 9.8 m/s^2 ( because we are figuring the distance an object fell, gravity becomes a negative value so use -9.8).

Using the distance formula:

Distance = 1/2 x -9.8 x 7^2

Distance = -240.1

Written in scientific notation = -2.4 x 10^2

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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step-by-step explanation:

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