A Projectile Is Launched from the Edge of a Cliff

question 7

Multiple Choice

A projectile is launched from the edge of a cliff with a velocity of 15.0 m/s at an angle of 30.0 degrees above the horizontal. Ignoring air resistance, what is the velocity of the projectile 2.00 seconds later?

• A) 17.8 m/s at an angle of 38 degrees above the horizontal
• B) 11.4 m/s at an angle of 43 degrees below the horizontal
• C) 17.8 m/s at an angle of 43 degrees below the horizontal
• D) 11.4 m/s at an angle of 38 degrees below the horizontal
• E) 17.8 m/s at an angle of 43 degrees above the horizontal

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Definitions:

Quota

A quota is a government-imposed trade restriction that limits the number or monetary value of goods that can be imported or exported during a particular time frame.

Tariff

A tax imposed by a government on goods and services imported from other countries, intended to increase their price and make domestic products more competitive.

Most-Favored-Nation Status

A trade status granting a nation the best trading terms available to any other nation, such as lowest tariffs or highest import quotas.

Negotiated Tariff Rates

Tariff rates determined through bargaining between countries, rather than set unilaterally, often resulting in lower duties.