Question

A constant force acting on a body of mass 3 kg changes its speed from 2m to 3.5m in 25seconds of average force acting on the body is x × 10^ -2 then x is

Answer 1

Answer: 18 IS THE ANSWER

Explanation: ACCELERATION=CHANGE IN VELOCITY/TIME TAKEN

                                                   =3.5-2/25

                                                   =0.06m/s²

AVERAGE FORCE=MASS×ACCELERATION=3×0.06=0.18 kgm/s²

                                                                                        =18×10⁻² kgm/s²

SO x=18 IS THE ANSWER

HOPE YOU UNDERSTOOD.....................

THANK YOU.