I have not been able to solve this question: A crate with a weight of 45.5 N sits on a ramp inclined at 20 degrees to the horizontal. There is a frictional force of 4.5 N exerted on the crate directed up the ramp. Determine the force that must be applied at an angle of 40 degrees to the ramp to keep the crate at rest. Include a labeled vector diagram with your solution. [6 marks] What is the force that must be applied at an angle of 40 degree to the ramp, how does that look like on a diagram.