Holden is trying to determine the velocity of his race car he went 20 m east turned around and went 40 m west he turned the car one more time and 135 m east his car was 15 m from the starting line he took five seconds what is the cars velocity

Agroup of students were investigating the force of gravity. they began by dropping a foam ball from a height of 3 meters into a bucket of sand. the ball hit the sand in 0.306 seconds. they dropped additional balls of approximately the same diameter, but of different masses. here is the data they collected. based on this experiment and the collected data, what would their conclusion be?