Barry is conducting an experiment and rolls a tennis ball down a ramp. Which best describes the motion of the tennis ball? It do
es not exhibit projectile motion and follows a straight path down the ramp. It does not exhibit projectile motion and follows a parabolic path down the ramp. It exhibits projectile motion and follows a straight path down the ramp. It exhibits projectile motion and follows a parabolic path down the ramp.
It does not exhibit projectile motion and follows a straight path down the ramp.
Explanation:
Projectile motion is the motion of the object that is projected into air. The only force acting on it must be the earth's gravity. The object projected into air is called the projectile and its path is called the trajectory.
In our case Barry is not throwing the tennis ball into air. It is just moving along the surface. It is just like any other movement on a flat surface The only difference it is happening at an angle.
In our case there is friction acting on the tennis ball, but only earth's gravity is supposed to act on the tennis ball.
So it does not exhibit projectile motion and follows a straight line path down the ramp
Lunar mountains are smoothly rounded rather than having sharp, pointed peaks because the lunar moons are formed because of the impact of asteroids and comets on its surface whereas the Earth mountains are formed because of the surface activity of volcanos, collision of land masses and activity of plate tectonics that is why they have sharp and pointed tops.
