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?
The resultant force is
We apply Newton's second Law
The magnitude of the acceleration is
The direction is
The angle lies in the 3rd quadrant