TSUKYOMINONATSUKO463GO TSUKYOMINONATSUKO463GO Science Answered III.) Solve the following using G-R-E-S-A method 1.) Calculate the force needed to accelerate a 100kg car moving forward at 30 m/s²? 2. What is the acceleration of a 120kg racing car a net force of 840N ? 3.) A ball accelerates downward at 10 m/s² with 19N of force. what is the mass of the ball?