A rod or length 2m starts to roll on a...

A rod or length 2m starts to roll on a horizontal surface as shown in figure. At the same time an ant starts from one end of the rod to other and when the rod rools through a distance 10m the ant dreaches the other end (B). Calcualte the distance and displacement of the ant
(a) with respect to the rod
(b) with respect to the ground.

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Verified by Experts

Distance travelled by the ant with respect to the rod =2m
Displacement with respect to the rod =2m
Distance with respect to the ground =10+2=12m
Displacement with respect to the ground
`=sqrt(2^(2)+10^(2))=sqrt(4+100)=sqrt(104)m`

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