Part A is correct I just cannot figure out part B Determine

Part A is correct I just cannot figure out part B.

Determine the magnitude of the component of force F = 94 lb acting parallel to diagonal AB of the crate.(Figure 1) Express your answer to two significant figures and include the appropriate units. Determine the magnitude of the component of force F = 94 lb acting perpendicular to diagonal AB of the crate. Express your answer to two significant figures and include the appropriate units.

Solution

Solution :

Since the parellel force has already been found then the perpendicalr force to AB can be found out by using the formula

F_per = sqrt ( F²- F_par²) = sqrt (94²-66²) = 66.93 lb