Answer to Question #350450 in Mechanics | Relativity for James

Question #350450

2. A car travels form rest and has a constant acceleration of 3 ft/s^2. Find the average velocity during the first 10s of motion.

1
Expert's answer
2022-06-13T15:34:13-0400

Given:

"a=3\\:\\rm ft\/s^2"

"v_0=0\\:\\rm ft\/s"

"t=10\\:\\rm s"


The distance traveled by a car during the first 10s of motion

"d=v_0t+at^2\/2=3*10^2\/2=150\\;\\rm ft"

The average velocity during this period of motion

"v_{ave}=\\frac{d}{t}=\\frac{150}{10}=15\\:\\rm ft\/s"


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