141461 A body travelling along a straight line path travels first half of the distance with a velocity \(7 \mathrm{~ms}^{-1}\). During the travel time of the second half of the distance, first half time is travelled with a velocity \(14 \mathrm{~ms}^{-1}\) and the second half time is travelled with a velocity \(21 \mathrm{~ms}^{-1}\). Then the average velocity of the body during the journey is
141461 A body travelling along a straight line path travels first half of the distance with a velocity \(7 \mathrm{~ms}^{-1}\). During the travel time of the second half of the distance, first half time is travelled with a velocity \(14 \mathrm{~ms}^{-1}\) and the second half time is travelled with a velocity \(21 \mathrm{~ms}^{-1}\). Then the average velocity of the body during the journey is
141461 A body travelling along a straight line path travels first half of the distance with a velocity \(7 \mathrm{~ms}^{-1}\). During the travel time of the second half of the distance, first half time is travelled with a velocity \(14 \mathrm{~ms}^{-1}\) and the second half time is travelled with a velocity \(21 \mathrm{~ms}^{-1}\). Then the average velocity of the body during the journey is
141461 A body travelling along a straight line path travels first half of the distance with a velocity \(7 \mathrm{~ms}^{-1}\). During the travel time of the second half of the distance, first half time is travelled with a velocity \(14 \mathrm{~ms}^{-1}\) and the second half time is travelled with a velocity \(21 \mathrm{~ms}^{-1}\). Then the average velocity of the body during the journey is