Question

The force of friction between an object and the surface upon which it is sliding is 46N and the coefficient of friction between them is 0.30. What is the weight of the object?

Answer 1

let the coefficient of friction be ß

Step-by-step explanation:

`from \: third \: law \: of \: solid \: friction \\ friction = \beta * R \\ where \: R \: is \: the \: normal \: reaction \\ 46 = 0.30 * R \\ R = (46)/(0.30) \\ R = 153.33 \: N \\ but \: R = mg \\ where \: mg \: is \: the \: weight \\ hence \\ weight, W = 153.33 \: N`