Solve the Problem. -A Person Is Standing on the Top of a Building

question 90

Multiple Choice

Solve the problem.
-A person is standing on the top of a building 50 feet above the ground. They project an object upward with an initial velocity of 40 feet per second. The object's distance above the ground, d, after t seconds may be found by
The formula d = -16t2 + 40t + 50. What is the maximum height the object will reach. How much time does it take
To fall back to the ground? Assume that it takes the same time for going up and coming down.

• A)maximum height = 50 ft; time to reach ground = 1.25 seconds
• B)maximum height = 75 ft; time to reach ground = 1.25 seconds
• C)maximum height = 75 ft; time to reach ground = 2.5 seconds
• D)maximum height = 50 ft; time to reach ground = 2.5 seconds

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Definitions:

Union Density

The proportion of a workforce that is a member of a labor union, often used as an indicator of the strength and presence of organized labor within a sector or economy.

Big Strikes

Significant labor strikes involving a large number of workers, often having a wide impact on industries or economies.

Globalization

The process of interaction and integration among people, companies, and governments worldwide, largely fueled by international trade and investment and aided by information technology.

Blue-Collar Workers

Employees who perform manual labor, often in industries like manufacturing, construction, and maintenance, typically requiring physical work.