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January 28, 2015

January 28, 2015

Posted by **Garcia** on Thursday, October 4, 2012 at 10:20pm.

(a) What is the average speed of the plane relative to the ground on the way to San Francisco?

(b) What is the average speed relative to the ground on the way back to Boston?

(c) What is the average speed for the entire trip?

- physics -
**Jennifer**, Friday, October 5, 2012 at 4:15pmFrom Boston to San Francisco, the speed of the plane relative to the ground is (240 - 41) = 199 m/s

From San Francisco back to Boston, the speed is (240 + 41) = 281 m/s

c) The average speed is just

(199 + 281)/2

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