A 20-G Bead Is Attached to a Light 120 Cm-Long

question 55

Multiple Choice

A 20-g bead is attached to a light 120 cm-long string as shown in the figure. If the angle α is measured to be 18°, what is the speed of the mass?

• A)0.55 m/s
• B)2.0 m/s
• C)3.8 m/s
• D)1.3 m/s
• E)1.1 m/s

---

Definitions:

Cash Refunds

Payments made in cash to purchasers of goods or services, often as a result of overpayment or a promotional offer.

Gift-Giving Efficiency

The effectiveness and utility in the act of giving gifts, considering the satisfaction of the recipient and the resources used.

Utility Maximization

A theory in economics suggesting that individuals or households seek to allocate their resources in a manner that maximizes their overall satisfaction or utility.

Marginal Costs

The cost added by producing one additional unit of a product, reflecting the variable costs involved in production.