# What is the average speed of an object that is moving at #9 m/s# at #t=0# and accelerates at a rate of #a(t) =3-t# on #t in [0,5]#?

##### 1 Answer

May 7, 2018

The average speed is

#### Explanation:

The acceleration is

The velocity is the integral of the acceleration

Plugging in the initial conditions

Therefore,

The average speed on