The graph shows the velocity−time graph of a uniformly moving body.
Let the velocity of the body at time (t) be v.
Area of the shaded region = length × breath
Where, Length = t, Breath = v
Area = vt = velocity × time …(i)
∴ Distance = Velocity × Time…(ii)
From equations (i) and (ii), Area = Distance
Hence, the area occupied below the velocity−time graph measures the distance covered by the body.