A 20-G Bullet Moving at 1 000 M/s Is Fired

question 18

Multiple Choice

A 20-g bullet moving at 1 000 m/s is fired through a one-kg block of wood emerging at a speed of 100 m/s.What is the change in the kinetic energy of the bullet-block system as a result of the collision assuming the block is free to move?

• A)0 J
• B)9.7 kJ
• C)-9.7 kJ
• D)-18 J

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Definitions:

Resale Price Maintenance

A practice where manufacturers or suppliers dictate the minimum price at which retailers can sell their products, often scrutinized under competition laws.

Refusal to Supply

An act whereby a business decides not to sell or provide goods or services to another business or individual.

Competition Act

Legislation aimed at promoting fair competition in the market by regulating anti-competitive practices.

Bait-and-Switch

A deceptive marketing practice where customers are lured by an advertised deal that is too good to refuse and then are pressured into purchasing a more expensive item or service.