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NEET UG PHYSICS MCQ: MOTION IN A STRAIGHT LINE

1 Easy

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A room has dimensions

3\,m \times 4\,m \times 5\,m

. A fly starting at one comer ends up at the diametrically opposite conner. The magnitude of the displacement of the fly is

View answer and explanation

Correct option: D

5\,\sqrt 2 \,m

Option D (

5\sqrt 2 \,m

) is correct because the displacement is the straight-line distance between opposite corners, calculated using the 3D distance formula:

\sqrt{{3^2 + 4^2 + 5^2}} = \sqrt{{50}} = 5\sqrt{2}

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