Question

an ant climbs up five stairs, each of width 20cm and height 20cm.Find the distance covered and displacement of ant.

Answer 1

area of step = w x h =20 x 20= 400 
area of 5 steps = 5 x 400 = 2000cm sq.

Answer 2

Distance - 20 cm

It climbs 20 widths and 20 heights which means 5 stairs


So 20 +20 for each step and 5 such stairs

20+20 ×5 = 200 cm.


Displacement =
$100 \sqrt{2}$
In this instead of width and height , it's hypotenuse is taken into calculation ,

hypotenuse of 20 cm width and 20 cm height is
$20 \sqrt{2}$
For 1 stair , for such 5 stairs
$20 \sqrt{2}$
×5 =
$100 \sqrt{2}$