A car travels 35.0 mph north for 1.00 hour, then 40.0 mph east for 0.0500 hour, and finally 50.0 mph northeast for 2.00 hours. Calculate the average speed.

Question

loser66 · Answer

I am new in this field. We can work together, Ok?

anonymous · Answer

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anonymous · Answer

The answer choices that I have are 44.9 mph, 14.7 mph, or 0.0222 mph, let's figure out which one is the correct answer.

loser66 · Answer

maybe I overthink something, which grade are you?

anonymous · Answer

12th

loser66 · Answer

the middle term is 40.0* 0.05, not 0.5

anonymous · Answer

Ok, now we should be able to solve the problem.

loser66 · Answer

I think you are on the right track, just correct the middle term.

anonymous · Answer

Done. Now I just need to go back and multiply to figure out what the total distance is, then I find the total time, and finally I divide to get the average speed.

loser66 · Answer

ha!! you solve it by yourself

anonymous · Answer

The answer I got is 44.9 which is one of the answer choices... :)

loser66 · Answer

me too.

anonymous · Answer

I did it right...and we both got the right answer. Thanks so much.

loser66 · Answer

I did nothing friend.

anonymous · Answer

What do you mean?

loser66 · Answer

you did it by yourself. I am helpless. hehehe.. you are good enough to solve it.

anonymous · Answer

Thanks. :) Can you help me with another question?