Posted by **Brownie** on Tuesday, January 29, 2013 at 5:50pm.

Given s = 10 - 10t2 + 45t3, determine the velocity when t = 1 s.

velocity in m/s =

My Answer

S'= 0-20t + 135t^2

S'(1) = -20+135 = 115

velocity in m/s = 115

Can you please confirm this is correct.

Thanks!

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