A motocross bike drives off of a jump angled at 45◦. When the bike leaves the jump, it has a speed of 20 m/s (about 40 mph). To ensure a smooth landing, the landing ramp needs to be at the same angle as the bike’s trajectory when it lands. If the landing ramp is 15 meters lower than the jump, what angle below the horizon should the landing ramp slope down?

Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.