A baseball player hits a foul ball straight up into the air. it leaves the back with the speed of 120 km/h in the absence of air resistance, how fast will the ball be moving when the catcher catches it?

the answer is b ) square root of 5

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

hope this ! : )

it is a negative acceleration