똑똑한분들 문제좀 해결해주세요

ㅠㅠㅠ2009.09.23
조회147

The position of a particle moving in a straight line during 5-second trip is given below.

Given: s(t) = 4t^2-6t-8cm

 

a) What is the average velocity for the entire trip?

b)Find a time at which the instantaneous velocity is equal to this average velocity.

 

 

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