Question

Given figure shows the displacement-time Graph of four children A, B, C, D which child has the highest of velocity and why?

Answer 1

velocity =displacement / time

let we take angle make by line A= angle 1

byC=angle 2

byD= angle3

by B=angle 4

by simply observing we know that angle make by line B is greatest son there =displacement be greater so velocity of B is more

Answer 2

Answer:

Slope of the displacement - time graph gives velocity. Slope of this graph for child B is maximum, so velocity of child B is the maximum