2. A farmer moves along theA farmer moves along the boundary of a squa

1.	2. A farmer moves along theA farmer moves along the boundary of a square field of side10 m in 40 s. What will be themagnitude of displacement of thefarmer at the end of 2 minutes 20seconds from his initial position?3.Which of the following is true fordisplacement?(a) It cannot be zero.(b). Its magnitude is greater thanthe distance travelled by theobject.
Answer» Answer: 2.5m 3.b Explanation: 2.d=10m t=40s s=10/40=0.25m/s now, t=140s s=0.25m/s d=0.25*140=35m peremeter of square is 40m ∴displacement is 5m. 3. displacement can be zero if obect TRAVELS and returne at same position after given TIME and hence answer is b.(option ELEMINATION)

2. A farmer moves along theA farmer moves along the boundary of a square field of side10 m in 40 s. What will be themagnitude of displacement of thefarmer at the end of 2 minutes 20seconds from his initial position?3.Which of the following is true fordisplacement?(a) It cannot be zero.(b). Its magnitude is greater thanthe distance travelled by theobject.

Answer»

Answer:

2.5m 3.b

Explanation:

2.d=10m

t=40s

s=10/40=0.25m/s

now, t=140s

s=0.25m/s

d=0.25*140=35m

peremeter of square is 40m

∴displacement is 5m.

3. displacement can be zero if obect TRAVELS and returne at same position after given TIME and hence answer is b.(option ELEMINATION)

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