You kick a ball on the ground, with an aim to hit a wall at height h above the ground. The initial velocity of the ball is 20 m/s and it makes an angle of 30° with respect to the ground. The wall is 15 m away from you. (a) Find the height h at which the ball will hit the wall. (b) Find the angle 0, at which the ball will hit the wall.

A stunt man drives a car at a speed ?⃑1= 20 m/s off anH = 30-m-high cliff. The road leading to the cliff is inclined upward at an angle ?= 10°. (a) How far from the base of the cliff does the car land? (b) What is the car's impact speed? (c) At what angle the car hits the ground? (d) Find the time it takes the car to hit the ground after leaving the cliff? (e) To what maximum height the car reaches to from the cliff? Neglect the air drag and the sizeof the car. Acceleration due to gravity = 9.80 m/s^2.

A 10-kg ball is launched at ground level with an initial speed v0 = 29 m/s, at an angle θ = 23°  with the horizontal. Air resistance is negligible. How far from the launching point does the ball touch the ground again, in m? This distance is called the range of the motion.

A skateboarder shoots off a ramp with a velocity of 6.6 m/s, directed at an angle of 58° above the horizontal. The end of the ramp is 1.2 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the origin the point on the ground directly below the top of the ramp. (a) How high above the ground is the highest point that the skateboarder reaches? (b) When the skateboarder reaches the highest point, how far is this point horizontally from the end of the ramp?

In the figure here, a ball is thrown up onto a roof, landing 3.50 s later at height h = 24.0 m above the release level. The ball's path just before landing is angled at 0 = 61.0° with the roof. (a) Find the horizontal distance d it travels. (Hint: One way is to reverse the motion, as if it is on a video.) What are the (b) magnitude and (c) angle (relative to the horizontal) of the ball's initial velocity? DO00 (a) Number i Unit (b) Number i Unit (c) Number i Unit