This is problem number one. It says Maribault is thrown down in an angle of 30 degrees from the horizontal at 6 meters per second. He is thrown from a cliff of height 12 meters. How important is he laying from the base of the cliff and how fast is he traveling right before he hits the ground. First thing, draw a picture. This is a 12 meter high cliff. We have a picture of a free body diagram. For all projectile problems, just about all projectile problems once we're in neglect, there's resistance. That's the free body diagram. It tells us a couple things. There's no forces in the x. The acceleration x is zero. The acceleration y is negative 9.8. We sum the forces and solve for a. That's what we get. Next thing that I would do is I would draw the vector for the initial velocity and figure out its components. It's thrown down. This is my xy axis. If you've ever got anything wrong for components, this is what I would do. I would draw an xy axis and label the angle. 30 degrees down from the horizontal. That's the 30 degrees right there. If you're doing it the automatic way, counterclockwise from the x axis, we mean you're using an angle of 330 degrees. Initial velocity of the x will be the 6 meters per second, which is the entire length of that arrow, 6 meters per second, times the cosine of 330. This case would be 5.19 meters per second. If you're doing the automatic way, take care of the sign for you. If you're calling up and right positive, that makes sense because we've turned to the right. Initial velocity in the y, the entire thing, 6 meters per second, times the sine of 303 degrees. We get the y part as negative 3 meters per second. The negative makes sense. Sure. We can turn to the right and down. Now they asked us how far does he land from the base of the clip? That's a question of this distance x, y, and x, not. But why does he hit the ground? Or what affects how quickly he hits the ground? It's the y direction. We have to figure out the time. I'm going to go ahead and get the time first. It'll be a part 2.