The position of an object at time t is given by s(t) = -9 - 5t. find the instantaneous velocity at t = 4 by finding the derivative.

Instantaneous Velocity is

Step-by-step explanation:

Velocity refers to the speed along with direction or we can say velocity refers to rate of change of position of an object with respect to time.

Let be the position of object . Then the instantaneous velocity is given by . At time , velocity is given by

Given:

On differentiating with respect to time t , we get :

At ,

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

5.25 ounces

step-by-step explanation:

divided 3/4 and 6