An object with a mass of #3 kg# is acted on by two forces. The first is #F_1= < -2 N , -5 N># and the second is #F_2 = < 7 N, 1 N>#. What is the object's rate and direction of acceleration?
The resultant force is given as
I do not understand the "rate of acceleration" part, but the magnitude of the acceleration is:
And the direction is given as: