PROBLEM SOLVING. Solve the problems following the standard format. (GRESA). 1. A toy car with a mass of 3.0 kg is pushed along a table. If the net force on the book is 15.0 N, what is the toy car's acceleration? 2. A force of 250 N is applied to an object that accelerates at a rate of 5m/s2 What is the mass of the object?​