Aball is rolling down a hill at +1.0 m/s, the ball is uniformly accelerating at
+4.9 m/s? , what will the ball's velocity be 4.0 s later?
+8.9 x 100° m/s
+2.0 x 10^1 m/s
+2.1 x 10^1 m/s
-1.9 x 10^1 m/s

Power can be defined as a. the distance over which work was done. b. how much work can be done in a given time. c. all the work in an given area. d. the energy required to do work.

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.

For waves in the ocean, the medium of the waves is a. air b. water c. energy d. a passing boat