Question

there are only two forces on an object that mass 10 kg. both has magnitude of 10 N. the angle between the forces is 60 deg. what is the magnitude of the object acceleration?

Answer 1

Assume that \(F_2\) is horizontal.
Break down \(F_1\) into its components.

Then solve for the y-component and x-component of the net force (\(F_{net}\)).
Combine these components of the net force and since \(F_{net}=ma\), you can easily solve for the acceleration \(a\).