Question

Answer questions 5.4.1 to 5.4.4 with reference to the line graph below:
5.4.1 At what time were the two cars moving at the same speed? (1)
5.4.2 Determine the gradient for car A over the last three seconds.
Show all your calculations. (2)
5.4.3 Determine the gradient for car B from t = 1 s to t = 4 s.
Show all your calculations. (2)
5.4.4 What statement can you make with reference to the movement of the two cars from
t = 5 s to t = 6 s? (1)

Answer 1

Answer:

Acceleration, rate at which velocity changes with time, in terms of both speed and direction. A point or an object moving in a straight line is accelerated if it speeds up or slows down. Motion on a circle is accelerated even if the speed is constant, because the direction is continually changing.