A Locomotive Is Pulling Three Train Cars Along a Level

question 21

Short Answer

A locomotive is pulling three train cars along a level track exerting a force of 100,000 N.The car next to the locomotive has a mass of 80,000 kg,the next one,50,000 kg,and the last one,70,000 kg.You can neglect the friction on the cars being pulled.
(a)What is the magnitude of the force that the 80,000-kg car exerts on the 50,000-kg car?
(b)What is the magnitude of the force that the 50,000-kg car exerts on the 70,000-kg car?

---

Definitions:

Net Income

The total profit of a company after all expenses and taxes have been deducted from total revenues.

Operating Leverage

A measure of how revenue growth translates into growth in operating income, highlighting the fixed versus variable costs structure of a business.

Variable Costs

Costs that change in proportion to the level of production or sales activity, such as raw materials and direct labor.

Operating Income

Income earned from a firm's regular business operations, excluding deductions of interest and taxes.