How fast will a ball be falling after 15 seconds

it depends on how high up u dropped the ball if the ball was only taking 15 seconds to hit the ground then the ball couldn't go any faster cause its done landed but if the ball was falling 20 mph then there is a chance that it would go 25mph landing compared to when it first fell

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both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .