Acar is slowed because the air it is moving through pushes past against it. this contact force is known as air

What if? if the temperature near the cliff suddenly falls to 0°c, reducing the speed of sound to 331 m/s, what would the initial speed of the rock have to be (in m/s) for the soccer player to hear the sound of the splash 2.90 s after kicking the rock?

Energy is the ability to do work which measures what

Who was the first scientist to measure speed as distance over time?