Question

a block of 20N is placed on a horizontal table of tension T,if kinetic friction is 5N.Then calculate coefficients of kinetic friction​

Answer 1

Answer:

Explanation:

Given:- weight of block=20N

kinetic friction(f)= 5N

solution:- kinetic friction =  coefficient of friction x normal reacion

                                       f =  U x 20

                                       5 =  u x 20

                                        U = 5/20

                                         U = 0.25