Question 7
Newton's Laws and MomentumIn an experiment, a constant force is applied to several masses (m) and the corresponding accelerations (a) are measured. Which of the following graphs correctly represents the experiment?
- A.III and IV only
- B.II and IV only
- C.I and III only
- D.I and II only
Show the answer and explanation
Answer: A (III and IV only)
Explanation
With F constant, a = F/m. So a against 1/m is a straight line through the origin (III), and a against m is a curve falling as m grows (IV).