Two forces are applied to an object with mass m = 5.25 kg and the resulting acceleration is ay = 2.09 m/s2 in the positive y direction with no acceleration in the x direction. One of the two forces being applied to the object is F2 = 14.7 N acting in the positive x direction.

Question

Write an expression for the magnitude F1 of the other force in terms of m, F2, and ay.
What is F1 in N?

Answer 1

F = ma, so
(14.7,0) + (Fx,Fy) = (0,2.9*5.25)
F = (-14.7,15.225)