1.Which of the following statements describes acceleration? *
It refers to the change in displacement over a specified time interval.
It refers to a point that is used to determine motion of an object.
It is defined as distance travelled divided by the time of travel.
It refers to the rate at which an object changes its velocity.

2.Determine the acceleration of a man while riding his bicycle in a straight line that speeds up from 4 m/s to 6 m/s in 5 seconds. (Note: ^2 means squared)
0.4 m/s
0.4 m/s^2
-0.4 m/s
-0.4 m/s^2

3.suho’s car accelerates from 0m/s to 45 m/s north in 15 seconds. What is the acceleration of the car? (Note: ^2 means squared)
3 m/s
3 m/s^2
-3 m/s
-3 m/s^2