A Ball Is Projected Upward at Time T = 0

question 14

Multiple Choice

A ball is projected upward at time t = 0.00 s, from a point on a roof 70 m above the ground and experiences negligible air resistance. The ball rises, then falls and strikes the ground. The initial velocity of the ball is 28.5 m/s. Consider all quantities as positive in the upward direction. The velocity of the ball when it is 39 m above the ground is closest to

• A) -38 m/s.
• B) -30 m/s.
• C) -23 m/s.
• D) -15 m/s.
• E) -45 m/s.

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Definitions:

Whig Party

A political party active in the mid-19th century United States that opposed the policies of the Democratic Party and advocated for a strong federal government.

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A term likely referring to the Second Bank of the United States, a national bank that operated from 1816 to 1836, playing a pivotal role in early American financial policy.

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The total amount of money that a country's government has borrowed, through various means, and has yet to repay.

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The spending of government funds, allocated through the federal budget, on various national programs, services, and infrastructure.