PreLab - Newtons Laws of Motion 1. What happens to an object's acceleration if the applied force is increased but the object's mass remains constant? 2. What happens to the acceleration if the mass is increased but the applied force remains constant? 3. State and explain Newton's second Law of Motion. 4. Why should we wear seatbelts - use one of Newton's Laws in your answer? 5. What are some possible reasons for any differences between the measured and calculated or theoretical values? 6. A 2 kg block is on a horizontal, frictionless plane. A string is attached to it and then goes over a pulley at the end of the plane. How much mass should you hang on the other end of the string in order to obtain an acceleration of 3 m/s