A car is moving along a straight highway. It increases its speed uniformly from 10m/s to 30m/s in 5s.
(a) Sketch a rough velocity–time graph for the motion, taking the initial instant as t=0.
(b) Using the graph, calculate the magnitude of the acceleration produced in the car.
(c) Find the displacement covered during these 5s by determining the area under the graph.
(d) Verify whether the numerical values obtained in parts (b) and (c) satisfy the relation v=u+at.