Homework Help: Physics

Posted by Tammy on Friday, September 21, 2007 at 1:56pm.

"from zero to sixty in 8 seconds" is a description of:
a) average speed
b) instantaneous speed
c)average acceleration
d) instantaneous acceleration

I know for sure that a) and c) aren't the right answers since average is over a long time period or the whole trip. I believe b) is the correct answer since speed is a scalar.

Physics - bobpursley, Friday, September 21, 2007 at 2:36pm
It is average acceleration over the eight second period.

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