A jogger runs due east in

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

Problem

A jogger runs 400 m400\,\text{m} due east in 40 s40\,\text{s}, then 300 m300\,\text{m} due west in 30 s30\,\text{s}, and finally rests for 10 s10\,\text{s}. What is the magnitude of the jogger’s average velocity for the entire 80 s80\,\text{s} period? (a) 8.75 m/s8.75\,\text{m/s} (b) 1.25 m/s1.25\,\text{m/s} (c) 1.43 m/s1.43\,\text{m/s} (d) 0 m/s0\,\text{m/s}

Related theory

Browse the problem library