Homework Help: Calculus

Posted by Lenna on Monday, June 18, 2012 at 6:15pm.

The position of a particle, s metres from the starting point, after t seconds, is defined by the function s(t) = 2t^3 - 7t^2 + 4

a) determine the velocity of the particle after t seconds

b) determine the velocity after 5 seconds

Calculus - Rajiv, Monday, June 18, 2012 at 7:21pm
v(t) = s'(t) = 6t^2-14t
v(5) = 6(5)^2 - 14(5)
= 150-70 = 80
Calculus - Lenna, Tuesday, June 19, 2012 at 12:23am
thank you!

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