The Position Vector of an Object of Mass 0

question 14

Multiple Choice

The position vector of an object of mass 0.50 kg subject to a constant force is given by = (at²+bt) + (ct²+dt) + (et²+ft) , where a = 2.0 m/s², b = 3.0 m/s, c = 2.5 m/s², d = -2.0 m/s, e = 1.0 m/s², and f = 4.0 m/s. What is the angular momentum of the object about the origin at t = 2.0 s?

• A)(24 - 122 - 89 ) kg∙m²/s
• B)(-24 + 10 + 23 ) kg∙m²/s
• C)(25 - 14 + 20 ) kg∙m²/s
• D)(25 + 14 + 20 ) kg∙m²/s
• E)(24 + 122 + 23 ) kg∙m²/s

---

Definitions:

Marginal Product

The additional output that is produced by employing one more unit of a particular input, while holding other inputs constant.

Fixed Cost

A financial outlay that is unaffected by variations in the production or sales levels of goods and services.

Marginal Cost

The expense associated with creating an extra unit of a product or service.

Total Cost

The complete cost of producing a specific quantity of output, including both fixed and variable costs.