13. Which of the following situations show that the object is accelerating?
1. A truck changing directions
A car speeding up in a high way
A moving motorcycle comes to stop
IV. A rolling ball moving with a uniform speed
A. I and II
B. I and III C. I, II and III D. I, II, III and IV
14. The table shows the velocity of the car per unit time.
Time (hour)
0 1 2 3 4 5
Velocity (kilometer per hour)
20 20 60 80 0
Which of the following statements is TRUE?
A. The car is decelerating between 4-5 hours.
B. The car is accelerating between 1-2 hours.
C. The car returns to its original position after 5 hours.
D. The acceleration of the car from 2-3 hours and 3-4 hours are the
same.
15. Refers to acceleration where a moving object slows down before it stops
A. Average acceleration
C.Deceleration
B. Constant acceleration
D. Instantaneous acceleration​