Question

A body of mass 20 kg is kept initially at rest A force of 80 N is applied on the body then the
acceleration produced in the body is 3 m/s force of friction acting on the body is?What is the friction force applied on the body?​

Answer 1

F=ma ,so here m =20 kg ,a =3 m/s2 so 20 *3 =60 N