(a) Define average velocity for a body moving along a straight line. (b) Using a…
PHYSICS · Subjective · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
(a) Define average velocity for a body moving along a straight line.
(b) Using a velocity–time graph, explain why the average velocity of a body undergoing uniform acceleration is equal to the arithmetic mean of its initial and final velocities.
(c) A cyclist starts at a velocity of 2m/s and, after accelerating uniformly for 5s, reaches a velocity of 6m/s. Without using the standard equations of motion, calculate the displacement covered in these 5s by applying the idea explained in part (b).