A ball whose mass is 0.4 kg hits the floor with a speed of 8 m/s and rebounds upward with a speed of 6 m/s. Collapse question part Part 1 (a) If the ball was in contact with the floor for 0.5 ms (0.5 × 10-3 s), what was the average magnitude of the force exerted on the ball by the floor?

The  the average magnitude of the force exerted on the ball by the floor N

Explanation:

Given:

Mass of ball kg

Initial speed

Rebound speed

Contact time interval sec

For finding the average magnitude of the force on the ball by the floor is given by,

Here

    N

Therefore, the  the average magnitude of the force exerted on the ball by the floor N

they are non-matter

explanation:

they are non-matter. basically, any type of energy or any abstract concept is an example of something that does not matter. other examples include dreams, magnetism, radio, and hate

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up