A Locomotive Is Pulling Three Wagons Along a Level Track

question 50

Multiple Choice

A locomotive is pulling three wagons along a level track with a force of 100,000 N. The wagon next to the locomotive has a mass of 70,000 kg, the next one, 50,000 kg, and the last one, 80,000 kg. Neglect friction. What is the force between the 70,000-kg and 50,000-kg wagons?

• A) 35,000 N
• B) 40,000 N
• C) 50,000 N
• D) 60,000 N
• E) 65,000 N

---

Definitions:

Moral-Hazard Problem

A situation where one party engages in risky behavior knowing that it is protected against the consequences, often because another party bears the cost of those actions.

Moral-Hazard Problem

The moral-hazard problem arises in situations where one party's willingness to take risks is increased because the negative consequences of those risks will be borne by another party.

Principal-Agent Problem

A dilemma in economics where one party (agent) is supposed to act in the best interest of another (principal) but may have a tendency to act in their own interest.

Asymmetric Information

A situation in which one party in a transaction has more or superior information compared to the other.