Question: A projectile is fired down an incline which makes an angle of 40 degrees to the horizontal. The initial velocity of the projectile has a speed of 10m/s and makes an angle 60 degrees to the incline. Calculate the maximum perpendicular distance of the projectile from the incline. Note: I don't even know how to start solving this question and I'm not sure which formulas I should be using. If anyone can provide some hints as to how to start solving this question and the methods to get to the solution, that would be very helpful. Thanks.