If an object's velocity changes from 25 meters per second to 15 meters per second in 2.0 seconds, the magnitude of the
object's acceleration is
A 5.0 m/s2
B 7.5 m/s2
C 13 m/s2
D 20 m/s2

=force × distance a. work b. velocity c. pressure d. momentum

What is a possible result of higher air temperature caused by global warming

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)