(a) a force of 5.4 N is applied to an object, and the object is observed to accelerate with an acceleration of 3.0 m/s^2. If friction is so small that it cant be ignored, what is the mass of the object in kilograms?
______kg
(b) an object of mass 39 kg is observed to accelerate with an acceleration of 2.0 m/s^2. If friction is so mall that it can be ignored, what is the force applied to the object in newtons?
______N