Question

Rizwan cycled along a straight road. The graph in Figure (b) illustrates his motion.(a) Calculate the velocity of Rizwan from t = 0 to 10 s.(b) Describe what happened to Rizwan from t = 10 to 20 s.(c) Calculate the displacement, s of Rizwan when t = 25 s.(d) Where was Rizwan when t = 35 s?

Answer 1

Answer:

300

(a)Since velocity is not changing, acceleration is equal to zero.

(b) Reading the graph, velocity=20ms

−1

(c) s = area of the figure enclosed under v-t graph. Distance covered in 15s, s=ut=20×15=300m