Asoccer player is running upfield at 10m/s and comes to a stop in 3 seconds facing the same direction. what is his acceleration

Drag each item into the proper state of matter category.

Can anybody me with this? ? (picture included.)

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?