# An object with a mass of #9 kg# is acted on by two forces. The first is #F_1= << -7 N , 1 N >># and the second is #F_2 = << 4 N, -3 N >>#. What is the objects rate and direction of acceleration?

##### 1 Answer

Jun 8, 2017

The rate of acceleration is

#### Explanation:

The resultant force is

We apply Newton's second Law

Mass,

The magnitude of the acceleration is

The direction is

The angle lies in the 3rd quadrant