Kinematics

16. A car is initially moving at a speed of 20 m/s. It comes to rest in 10 seconds. What is its acceleration?

a) -2 m/s^2

b) 2 m/s^2

c) -20 m/s^2

d) 20 m/s^2

17. Which of the following is the correct equation for calculating average velocity?

a) v = u + at

b) v = s/t

c) v = s – u

d) v = (u + v)/2

18. A ball is thrown horizontally from a height of 10 meters. How long does it take to reach the ground?

a) 1 second

b) 2 seconds

c) 3 seconds

d) 4 seconds

19. The area under an acceleration-time graph represents:

a) Speed

b) Distance

c) Velocity

d) Displacement

20. A car is traveling at a speed of 60 km/h. How far will it travel in 2 hours?

a) 30 km

b) 60 km

c) 120 km

d) 240 km