Question

When the dog shakes his body, his fur and the droplets of water clinging to it move in circular arcs. If the droplets leave the fur, what will be the subsequent motion? (For the short times in the video, motion due to gravity is negligible) A) The droplets will move in parabolic arcs. B) The droplets will move in straight-line paths C) The droplets will travel in circular arcs.

Answer 1

Answer:

A) True. The droplets will move in parabolic arcs.

Explanation:

When the dog shakes the drops that leave the fur they leave with a speed and an angle; These are now subject to the out of gravity that accelerates them in the vertical axis and has no outside the horizontal axis, so they must describe a parabolic movement.

Pair to describe a central force that changes its speed, but this force does not exist once they leave the dog

Let's check the answers

A) True. You agree with the analysis

B) False. There is an outside on the axis and therefore the line is deviating

C) False. There is no radial force that creates this movement