How do I solve this problem? What is the average acceleration of a car that accelerates from 10. m/s forward to 20. m/s forward in 5.0 s?

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I'm supposed to use significant figures

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Answer 1 · 2018-04-07T01:49:40

#2 \ "m/s"^2#

Acceleration is defined through the equation,

#a=(dv)/dt#

#(dv)/dt# is the change in velocity with respect to time

Perhaps, we won't need differential calculus here, and we can change it into:

#a=(v-u)/t#

#v# is the final velocity

#u# is the initial velocity

#t# is time

And so, we get:

#a=(20 \ "m/s"-10 \ "m/s")/(5 \ "s")#

#=(10 \ "m/s")/(5 \ "s")#

#=2 \ "m/s"^2#