derivative 5

Question

The position of an object at time t is given by s(t) = 3 - 4t. Find the instantaneous velocity at t = 8 by finding the derivative.

 

Answer 1

 s(t) = 3 - 4t. 

Instantaneous velocity,v =ds/dt

v = d/dt(3-4t)

 =0-4

=-4 units

At t = 8

v = -4 units