Question

limiting frictional force is directly proportional to the​

Answer 1

$\fbox\pink{A}\fbox\blue{n}\fbox\purple{s}\fbox\green{w}\fbox\red{e}\fbox\orange{r}$The magnitude of limiting friction 'F' is directly proportional to normal reaction 'R' between the two surfaces in contact. where is called the coefficient of friction which is a measure of friction based on the type of material that are in contact.