Question

A person moves in the field of square of square shape of side 10 cm. calculate distance and displacement. 1.person covers half length if ground. 2. person covers complete rotation​

Answer 1

Answer:

Hello Friend !

The answer to your query is given below :

Given, the side of the square = 12 m

Therefore, perimeter of the square = 12 × 4 = 48m

Farmer moves along the boundary in 50 sec.

Therefore, displacement after 2 min 30 sec = 2 × 60 sec + 30 sec = 150 sec = ?

Since in 50 sec farmer moves 48 m , therefore, in 1 sec distance cvered by farmer =  

⇒  = 

Therefore, in 150 sec distance covered by the farmer = 

⇒

⇒ 24 × 6 = 144 m .

This is the magnitude of distance covered by the farmer in 2 min 30 sec i.e., 150 sec

Now, number of rotations to cover 144 m along the boundary = 

⇒ no of rotations =  = 3 rotations 

Since 3 complete rotations are made by the farmer in 2 min 30 sec , this means that the farmer returns to its initial position from where he started after 3 rotations.

Therefore the magnitude of displacement = 0 

This is your answer .

Explanation:

Answer 2

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