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MHT CET 2026 (12 May, Shift 2) · Friction Basics

Friction Basics question from MHT CET 2026 (12 May, Shift 2)

Q2MHT CET 2026 · 12 MAY · SHIFT 2Easy

Friction Basics

A block of mass $1$ kg is kept on ice surface. When velocity of $4$ m/s is given to it, it stops by friction in $5$ second. The coefficient of friction is (acceleration due to gravity, $g = 10$ m/s ${}^{2}$ )

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Answer: (c)

Retardation $a = \dfrac{v}{t} = \dfrac{4}{5} = 0.8\text{ m/s}^2$
Friction gives $a = \mu g \Rightarrow \mu = \dfrac{0.8}{10}$
$\mu = 0.08$ , so the answer is (c).

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