A boy walks uniformally along the sides of a rectangular park of size $400\, m × 300\, m$, starting from one corner to the other corner diagonally opposite. Which of the following statement is incorrect
He has travelled a distance of $700\, m$
His displacement is $700 \,m$
His displacement is $500\, m$
His velocity is not uniform throughout the walk
A boy walks uniformally along the sides of a rectangular park of size $400\, m × 300\, m$, starting from one corner to the other corner diagonally opposite. Which of the following statement is incorrect
Displacement $\overrightarrow {AC} = \overrightarrow {AB} + \overrightarrow {BC} $
$AC = \sqrt {{{(AB)}^2} + {{(BC)}^2}} = \sqrt {{{(400)}^2} + {{(300)}^2}} = 500m$
Distance $ = AB + BC = 400 + 300 = 700\,m$
$AC = \sqrt {{{(AB)}^2} + {{(BC)}^2}} = \sqrt {{{(400)}^2} + {{(300)}^2}} = 500m$
Distance $ = AB + BC = 400 + 300 = 700\,m$