A Projectile Is Dropped, and Reaches the Ground at 40

question 23

Multiple Choice

A projectile is dropped, and reaches the ground at 40 m/s. How long does it take the projectile to reach ground? (Assume the position function is , where a = -10 .)

• A) 2 s
• B) 8 s
• C) 4.47 s
• D) 4 s
• E) 3.16 s

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Definitions:

Compounded Monthly

The process of adding interest to the principal sum of a loan or deposit, or in other words, interest on interest, calculated on a monthly basis.

Retirement Account

A financial account that is specifically designed to save funds for retirement, offering tax benefits for money invested and saved.

Pension Plan

A type of retirement plan where an employer makes contributions to a pool of funds set aside for an employee's future benefit.

Multiplier

A factor by which an economic variable is multiplied to estimate its impact on other variables.