Two people pushing a box across a frictionless field. One pushing east with a force of 60N, the other pushing due north with 50N find the magnitude and direction of the resultant force​

a

step-by-step explanation:

b

yx = 36

step-by-step explanation:

cos f = opposite side/ hypotenuse

cos f = yw / yx

we know cos f = 4/9 and yw =16

4/9 = 16/yx

multiply each side by yx

4/9 yx = 16/ yx * yx

4/9 yx = 16

multiply each side by 9/4

9/4 * 4/9 yx = 16 *9/4

yx = 36