2.2 & 2.3

Question 1

Acceleration:

Answer 1

Is the rate of change of velocity.when the velocity of an object changes,the objects is accelerating.

Question 2

Centripetal acceleration:

Answer 2

In the same way, Earth experiences centripetal acceleration as it orbits the sun in a nearly circular path.8

Question 3

Velocity:

Answer 3

Velocity includes the speed of an object and the direction of its movement. Velocity has the same units as velocity, m / s.

Question 4

Momentum:

Answer 4

Of an object it is the product of its mass and velocity. The moment is usually represented by the symbol p.