Three runners A, B

PHYSICS · Single correct · CBSE · Physics · Motion · Motion

Problem

Three runners A, B, and C move in a straight line with the velocity–time behaviors listed below. • Runner A: velocity remains constant at

+5\,\text{m/s}

. • Runner B: velocity increases uniformly from

0\,\text{m/s}

t=0

+10\,\text{m/s}

t=4\,\text{s}

. • Runner C: velocity remains constant at

-6\,\text{m/s}

. Which option correctly ranks the magnitudes of their accelerations from greatest to least? (a)

C > B > A

(b)

B > C > A

(c)

B > A = C

(d)

A = B > C