An ideal projectile starts and lands at the same hieght on the ground.

1) does the projectile spend more time in flight above or below 1/2 of its maximum height?

2) solve for fraction of time spent above 1/2 maximum height.

3) prove that y position is symmetric about maximum height.

i know the answer for the first one is above 1/2 its maximum height but need with 2) and 3) .

moving ball hits still ball. mover stops, hit ball moves. momentum transfer.

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."

molecules are free to separate from each other and will take on the shape of the container. molecules move completely at random and high speeds. they vibrate in a fixed position and do not move around much. molecules expand to the edge of their container.