Question

fast as possible step by step 9th​

Answer 1

Explanation:

Given side of square= 10m,Thus

Perimeter P= 40m

Time taken to cover the boundary of 40m = 40s

Thus in 1 second, the farmer covers a distance of 1 m

Now the distance covered by the farmer in 2 min 20sec = 1 × 140 = 140m

Now the total number of rotation the farmer makes to cover a distance of 140m

Total distance/ Perimeter

= 3.5

At this point , the farmer is at a point say B from the origin O

Thus the displacement s= √ (10)^2 + (10)^2 )

From Pythagoras theorem

s = 10√2 = 14.14 m Ans

Hope it helps you