Question 18.55

25. Consider a real locomotive that weighs 88 tons and an HO-gauge scale model of it, for which the linear scaling factor is 1/87.

  1. How much would an exact scale model weigh in tons?
  2. What assumptions are involved in your answer to part (a)?
  3. How much would an exact scale model weigh in pounds?
  4. How much would an exact scale model weigh in kilograms?
  5. How much would an exact scale model weigh in tonnes ()?

25.

(a) 0.00013364 tons

(b) That all parts of the scale model are made of the same materials as the real locomotive

(c) 0.267 lb

(d) 0.121 kg

(e) 0.000121 metric tonnes