Question

a farmer moves along the boundary of a square field size 10 m in 40 seconds what will be the magnitude of displacement of the farmer at the end of 2 minute 20 seconds

Answer 1

The farmer covers a distance 10m in 40 seconds. It is a square field and all the sides are equal.

By applying unitary method 

In  40 seconds distance covered is 10m

In 140 seconds distance covered will be 10 into 140/40=35m.

Displacement=5m
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