A 42-Kg Object, Initially at Rest, "Explodes" into Three Objects of of Equal

question 19

Multiple Choice

A 4.2-kg object, initially at rest, "explodes" into three objects of equal mass. Two of these are determined to have velocities of equal magnitudes (5.0 m/s) with directions that differ by 90°. How much kinetic energy was released in the explosion?

• A) 70 J
• B) 53 J
• C) 60 J
• D) 64 J
• E) 35 J

---

Definitions:

Output

The total amount of goods or services produced by a company, industry, or economy within a specified period.

Fixed Costs

Expenses that do not change with the volume of output, such as rent, salaries, and insurance premiums.

Variable Costs

Expenses that vary directly with the amount of production output.

Total Costs

Total costs encompass the sum of all expenses incurred in the production of goods or services, including fixed and variable costs.