- A ball is thrown at a wall 50 meters away. It takes the ball 5 seconds to get to the wall it is thrown at What is the average speed of the ball? SPEED

The air that we breath is made mostly of which gaseous molecule

What determines the amount of inertia an object has

The drag force, fd, imposed by the surrounding air on a vehicle moving with velocity v is given by fd = cdaρv 2/2 where cd is a constant called the drag coefficient, a is the projected frontal area of the vehicle, and ρ is the air density. an automobile is moving at v = 80 kilometers per hour with cd = 0.28, a = 2.3 m2, and ρ = 1.2 kg/m3.