A Projectile Is Projected from the Origin with a Velocity

question 7

Multiple Choice

A projectile is projected from the origin with a velocity of 20.0 m/s at an angle of 30.0 degrees above the horizontal.The projectile lands on a roof that is 4.00 m height.What is the speed when the projectile hits the roof?

• A) 19.2 m/s
• B) 17.9 m/s
• C) 12.5 m/s
• D) 9.20 m/s
• E) 8.40 m/s

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Definitions:

ATC

Average Total Cost, which is the total cost of production divided by the number of units produced, encompassing both fixed and variable costs.

TC/q

Total cost divided by quantity; a formula to calculate the average total cost.

Average Total Cost

The sum of all production expenses divided by the quantity of products made, indicating the per-unit cost.

Average Fixed Cost

The fixed costs of production (e.g., rent, salaries) divided by the quantity of output produced; these costs decline as production increases.