A body of $10\, kg$ is acted by a force of $129.4\, N$ if $g = 9.8\,m/{\sec ^2}$. The acceleration of the block is $10\,m/{s^2}$. What is the coefficient of kinetic friction
A body of $10\, kg$ is acted by a force of $129.4\, N$ if $g = 9.8\,m/{\sec ^2}$. The acceleration of the block is $10\,m/{s^2}$. What is the coefficient of kinetic friction
$0.03$
$0.01$
$0.3$
$0.25$
A body of $10\, kg$ is acted by a force of $129.4\, N$ if $g = 9.8\,m/{\sec ^2}$. The acceleration of the block is $10\,m/{s^2}$. What is the coefficient of kinetic friction
Net force on the body = Applied force -Friction
$ma = F - {\mu _k}mg$
${\mu _k} = \frac{{F - ma}}{{mg}} = \frac{{129.4 - 10 \times 10}}{{10 \times 9.8}} = 0.3$
Other Language