A block B is pushed momentarily along a horizontal surface with an initial velocity v. If µ is the coefficient of sliding friction between B and the surface, block B will come to rest after a time

$\frac{ν}{gμ}$

$\frac{gμ}{ν}$

$\frac{g}{ν}$

$\frac{ν}{g}$

Solution

$\frac{ν}{gμ}$

Block B will come to rest, if force applied to it will vanish due to frictional force acting between block B and surface, ie,
force applied = frictional force

μmg = m $α$

where μ - constant of proportionality

$\Rightarrow μmg = mα \Rightarrow μmg = m (\frac{ν}{t}) \Rightarrow t = \frac{ν}{μg}$

Some More Questions From Laws of Motion Chapter

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Laws Of Motion

A block B is pushed momentarily along a horizontal surface with an initial velocity v. If µ is the coefficient of sliding friction between B and the surface, block B will come to rest after a time

$\frac{ν}{gμ}$

$\frac{gμ}{ν}$

$\frac{g}{ν}$

$\frac{ν}{g}$

Some More Questions From Laws of Motion Chapter

Due to what type of inertia, the spark leaves the grind stone tangentially while sharpening the knife?

Which law of motion is also called law of inertia?

What is measure of inertia of body?

Which law of motion defines the force?

What happens to a stone tied to the end of string and whirled in a circle if the string suddenly breaks?

Which law of motion gives the quantitative knowledge of force?

Which law of motion is the real law of motion?

Which law of motion gives the quantitative definition of force?

Why do we pull the rope in downward direction for climbing up?

What can set the body at rest into motion?

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Laws Of Motion

A block B is pushed momentarily along a horizontal surface with an initial velocity v. If µ is the coefficient of sliding friction between B and the surface, block B will come to rest after a time νgμ gμν gν νg

Some More Questions From Laws of Motion Chapter

Due to what type of inertia, the spark leaves the grind stone tangentially while sharpening the knife?

Which law of motion is also called law of inertia?

What is measure of inertia of body?

Which law of motion defines the force?

What happens to a stone tied to the end of string and whirled in a circle if the string suddenly breaks?

Which law of motion gives the quantitative knowledge of force?

Which law of motion is the real law of motion?

Which law of motion gives the quantitative definition of force?

Why do we pull the rope in downward direction for climbing up?

What can set the body at rest into motion?

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

A block B is pushed momentarily along a horizontal surface with an initial velocity v. If µ is the coefficient of sliding friction between B and the surface, block B will come to rest after a time

$\frac{ν}{gμ}$

$\frac{gμ}{ν}$

$\frac{g}{ν}$

$\frac{ν}{g}$