A train is traveling from Texas to Kentucky with the initial velocity of 5 m/s. If the final velocity is 65m/s and traveled 1800km then what is the acceleration?

An incident ray through the focal point of a spherical mirror will: reflect through the center of curvature. reflect back through the focal point. reflect parallel to the principle axis. reflect the same direction as the incident ray.

Idon’t quite understand this problem

The earth is constantly spinning on its axis, like you might spin a basketball on your finger. it is this spinning of the earth that causes