Question

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

Answer 1

Height = 20cm 

Width = 20cm

Distance to climb 1 stair = 20 + 20 = 40cm 

Distance to climb 5 stairs = AB + BC 

= 5 x 40 

= 200cm 

Displacement = \(\sqrt {AB\times AB+BC\times BC}\)

= 100\(\sqrt2\)