A body of mass 2 kg is moving on ground comes to rest after some time. coefficient of kinetic fricti

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4-2.Friction

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A body of mass $2$ kg is moving on the ground comes to rest after some time. The coefficient of kinetic friction between the body and the ground is $0.2$. The retardation in the body is ...... $m/s^2$

A

$9.8$

B

$4.73$

C

$2.16$

D

$1.96$

Solution

(d) We know that $a$ $ = \mu g = 0.2 \times 9.8 = 1.96\;m/{s^2}$

Standard 11

Physics

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