The function$$ s$($t$)$ represents the position of an object at time t moving along a line. Suppose s left parenthesis $1$ right parenthesis equals $120$ and s left parenthesis $6$ right parenthesis equals $255.$ Find the average velocity of the object over the interval of time left bracket $1$ comma $6$ right bracket.

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Part $1$

The average velocity over the interval left bracket $1$ comma $6$ right bracket is v Subscript avequals

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enter your response here. $($Simplify your$$ answer.$)$