Help me with this physics question PLEASE!?(adsbygoogle = window.adsbygoogle || []).push({});

ok it goes:

"Bob measures the motion of a toy car. It starts 4m east of his reference point and moves 4m east, 6m west, and 9m east. It takes 20 s to complete all these moves."

and then it asks:

a. find the total distance travelled, which I think is 19 m (4m +6m +9m). Am i right?

b. Find the final position of the car. Is it 11m?

c. Find the total displacement of the car. What?!!!

d. Find the car's average speed. Uh, is average speed the same thing as average velocity? In the case it was, I think the answer is the same as e.

e. Find the car's average velocity. Vave=total distance/total time = 19m/20s = 0.95 m/s (if my answer is right, are the significant digits right?)

Thanks so much to anyone who is willing to help out a very confused physics pupil!

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# Homework Help: Need Help On Uniform Motion Question please!

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