ok i just figured it out how to do the solutions with integration
v(t) = integral 6t
v(t) = 3t^2 + c
9 = 3(0)^2 + c
9 = c
v(t) = 3t^2 + 9
but is there any way to do this without using integration because we haven't learned integration yet..
1. Given acceleration of an object is given by
a(t) = 6t
and the intial velocity is 9 m/s
2. the general form we learned is
v(t) = -at + v0
3. so i guess
v(t) = -6t^2 + 9
is that right ? can i substitute 6t for a ... or a(t) doesn't equal a