Question

) I push a heavy desk by applying a force of 150 pounds at 25° to the desk. How much force is actually used in pushing the desk? What would happen if I increased the angle to 35°?

Answer 1

ok it's a bad drawing, but the basic idea is that you want to push it horizontally (say to the left)

Answer 2

the force you apply is at a diagonal direction (in this case, southwest). You want the object to go west

Answer 3

the actual horizontal force applied can be found if we set up a triangle like so