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JEE Main 202117 MarchEvening Shift
Exam
JEE Main
Year
2021
Date
17 March
Shift
Evening Shift
Subject
Physics
Chapter
Laws of Motion

JEE Main 2021 · 17 March · Evening Shift · Physics · Laws of Motion

A body of mass 1kg rests on a horizontal floor with which it has a...

A body of mass 1kg1kg rests on a horizontal floor with which it has a coefficient of static friction 13\dfrac{1}{\sqrt{3}}. It is desired to make the body move by applying the minimum possible force FNFN. The value of FF will be _______.(Round off to the Nearest Integer) [Take g=10ms−2g = 10{ms}^{- 2} ]A body of mass 1kg rests on a horizontal floor with which it has a coefficient of static friction 1 3 . It is desired

Correct answer

0

Step-by-step solution

A body of mass 1kg rests on a horizontal floor with which it has a coefficient of static friction 1 3 . It is desired

Fcos\theta = \muN</p><p></p><p>⇒ Fsin\theta + N = mg</p><p></p><p>⇒ F = \dfrac{\mumg}{cos\theta + \mu sin\theta}</p><p></p><p>{F}_\min = \dfrac{\mumg}{\sqrt{1 + {\mu}^{2}}} = \dfrac{\dfrac{1}{\sqrt{3}} \times 10}{\dfrac{2}{\sqrt{3}}} = 5

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