In the experiment, the motion of a body was investigated, as a result of which the average speed and its absolute error were obtained bar (V)=312.0m/s Delta bar (V)=20.483ldots m/s Please indicate the correct record of the final result of this experiment V=(312.0pm 20.5)m/s

The correct record of the final result of this experiment is . This indicates that the average speed of the body is 312.0 m/s, with an absolute error of 20.5 m/s.