Force required to move a mass of 1 kg at rest on a horizontal rough plane ( μ =0.1 and g=9.8 ms2 ) is

Question

Force required to move a mass of 1 kg at rest on a horizontal rough plane ( μ =0.1 and g=9.8 ms2 ) is (A) 0.98 N (B) 0.49 N (C) 9.8 N (D) 4.9 N

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/0f3a01163a90ceb82322b56a00ffbb49-.png" /> Given that μ=0.1 and g=9.8 m / s 2 So, F =fr=μ N=μ mg =0.1 × 1 × 9.8=0.98 N

Q. Force required to move a mass of $1 k g$ at rest on a horizontal rough plane ( $μ = 0.1$ and $g = 9.8 m s^{2}$ ) is

$0.98$ N

$0.49$ N

$9.8$ N

$4.9$ N

Given that $μ = 0.1$ and $g = 9.8 m / s^{2}$
So, $F = f_{r} = μ N = μ m g$
$= 0.1 \times 1 \times 9.8 = 0.98 N$

Q. Force required to move a mass of 1kg at rest on a horizontal rough plane ( μ=0.1 and g=9.8ms2 ) is

0.98 N

0.49 N

9.8 N

4.9 N