Calculate the maximum acceleration (in m s ^ -2 ) of a moving car… - Vidyadip

MCQ

Calculate the maximum acceleration (in $m s ^{-2}$) of a moving car so that a body lying on the floor of the car remains stationary. The coefficient of static friction between the body and the floor is $0.15$ $\left( g =10 m s ^{-2}\right)$.

A
$50$
B
$1.2$
C
$150$
✓
$1.5$

✓

Answer

Correct option: D.

$1.5$

d
$F _{ s }= ma$

$f _{ L }= ma a _{\max }$

$\mu mg = ma _{\max }$

$a _{\text {max }}=\mu g$

$=0.15(10)$

$=1.5\,m / s ^2$

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