Question

please give the answer​

Answer 1

▶ Solution :

Given :

A farmer moves along the boundary of a square field of side 10m in 40s.

To Find :

Magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from his initial position.

Concept :

▪ Displacement is defined as the shortest distance b/w initial and final point of whole journey.

▪ Displacement is a vector quantity.

▪ Displacement can be positive, negative and zero.

Calculation :

✏ 2min 20sec = 140sec = (120+20)sec

✏ Farmer will cover 3(1/2) round of square after the given time.

✏ As per definition of displacement,

▪ Displacement = Δposition

▪ Displacement = √2(side)

▪ Displacement = √2(10)

▪ Displacement = 10√2m

✴ Displacement can be zero. (i.e. returns to the initial position)

✴ Distance is defined as the total actual length of path which is covered by moving body.

✴ Relation between distance(path length) and displacement is given by

Distance $\geqslant$ Displacement

Answer 2

Gɪᴠᴇɴ

➤ A farmer moves along the boundary of a square field of side 10m in 40s.

_________________

ᴛᴏ ꜰɪɴᴅ

✪ Magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from his initial position.

_________________

Sᴛᴇᴘꜱ

Calculation :

☞ 2min 20sec = 140sec = (120+20)sec

☞ Farmer will cover 3(1/2) round of square after the given time.

☞ As per definition of displacement,

▪ Displacement = Δposition

▪ Displacement = √2(side)

▪ Displacement = √2(10)

▪ Displacement = 10√2m

✴ Displacement can be zero. (i.e. returns to the initial position)

✴ Distance is defined as the total actual length of path which is covered by moving body.

✴ Relation between distance(path length) and displacement is given by

Distance \geqslant⩾ Displacement

➜$\large \rm{ \orange{Extra \: Information}}$

❍ Displacement is defined as the shortest distance b/w initial and final point of whole journey.

❍ Displacement is a vector quantity.

❍ Displacement can be positive, negative and zero.

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