Question

The equation:
s = 2 - 3t + 4t^3 show the distance s and time t taken by a particle to move along a straight line.

The avg velocity of the particle is?

Answer 1

when the time is 3 second.

Answer 2

ah ! thats the velocity when t = 3

have you done any calculus. Differentiation?

Answer 3

yes!
i got this:
-3 + 12t^2 = s

Answer 4

nearly - thats ds/dt or the velocity at time t

Answer 5

so if you plug t = 3 into this function youll get the answer.

Answer 6

got 73 ...