From the velocity-time graph, we have: Distance covered by A=(21​×2t​×2at​+21​×2t​×2at​+2t​×2at​)=2at2​ Distance covered by B=(21​×at×2t​+at×2t​+21​×2at​×2t​)=87​at2 ∴ Distance covered by A< Distance covered by B