Posted by josh on Monday, July 26, 2010 at 8:40am.
a)speed is the magnitude of instantaneous velocity. Is the average speed equal to the magnitude of the average velocity? Justify
b)under what condition is the average equal to instantaneous velocity?
c)a car travels 40 mph for 2 hrs and 60 mph for 3hrs.what is the average speed?

PHYSICS  merwin, Tuesday, July 27, 2010 at 7:37am
asa
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