Posted by **bethany** on Thursday, October 28, 2010 at 4:19pm.

Please Help. I am not sure how to set up or do this problem. Thanks

A car is traveling along a road, and its engine is turning over with an angular velocity of +199 rad/s. The driver steps on the accelerator, and in a time of 14.2 s the angular velocity increases to +263 rad/s.

(a) What would have been the angular displacement of the engine if its angular velocity had remained constant at the initial value of +199 rad/s during the entire 14.2-s interval?

(b) What would have been the angular displacement if the angular velocity had been equal to its final value of +263 rad/s during the entire 14.2-s interval?

(c) Determine the actual value of the angular displacement during the 14.2-s interval.

- physics -
**Bunny**, Friday, January 22, 2016 at 12:06am
First you multiply 199 with 14.2 to get a.

Then you multiply 263 with 14.2 to get b.

I haven't figured out c yet but i'll let you know!

- physics -
**Bunny**, Friday, January 22, 2016 at 12:09am
For c, you find the average of 199 and 263, then you multiply it by 14.2! Hope that helps!

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