Question

Fill in the blanks.
A block of mass $1kg$ lies on a horizontal surface in a truck. The coefficient of static friction between the block and the surface is $\mathrm{0.6.}$ If the acceleration of the truck is $5m/s^2,$ the frictional force acting on the block is ........ Newtons.

Answer 1

Given that,

mass $=1kg$

Acceleration of truck $=5m/s^2$

force acting on block $=m\times a=1\times 5N=5N$

coefficient of friction $=0.6=\mu$

$\therefore$ Maximum value can be given by $=\mu mg$

$=0.6\times 1\times 10=6N$

$\therefore$ Maximum friction will be $6N$

$Butfrictionwillbe5N$