A 300-Kg Child Sits on One End of a Long Uniform

question 18

Multiple Choice

A 30.0-kg child sits on one end of a long uniform beam having a mass of 20.0 kg,and a 40.0-kg child sits on the other end.The beam balances when a fulcrum is placed below the beam a distance 1.10 m from the 30.0-kg child.How long is the beam?

• A) 2.12 m
• B) 1.98 m
• C) 1.93 m
• D) 2.07 m
• E) 2.20 m

---

Definitions:

Autonomous Morality

A stage in moral development where individuals recognize that rules and laws are created for the welfare of the population and can judge actions by their intentions rather than just their consequences.

Moral Development

The process by which individuals acquire and understand values, ethics, and principles that guide responsible behavior and decision-making.

Relational Aggression

A form of aggression focused on damaging someone’s relationships or social standing, often through gossip or social exclusion.

Stable Friendship

A lasting and consistent friendship characterized by mutual trust, support, and understanding.