Two Cannonballs Are Dropped from a Second Floor Physics Lab

question 19

Multiple Choice

Two cannonballs are dropped from a second floor physics lab at height h above the ground.Ball B has four times the mass of ball A.When the balls pass the bottom of a first floor window at height
Above the ground,the relation between their kinetic energies,K_A and K_B,is

• A)K_A = 4K_B.
• B)K_A = 2K_B.
• C)K_A = K_B.
• D)K_B = 2K_A.
• E)K_B = 4K_A.

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Definitions:

Price Ceiling

A maximum legal price above which a product cannot be sold; to have an impact, a price ceiling must be set below the equilibrium price.

Equilibrium Price

The price at which the quantity of a good or service demanded equals the quantity supplied, resulting in market balance.

Shortage

A market condition characterized by the demand for a product exceeding its supply, often leading to increased prices.

Equilibrium Price

The price at which the quantity of a product offered for sale matches the quantity being demanded, resulting in no net surplus or shortage in the market.