A Horizontal Plank (M = 2

question 29

Multiple Choice

A horizontal plank (m = 2.0 kg, L = 1.0 m) is pivoted at one end. A spring (k = 1.0 × 10³ N/m) is attached at the other end, as shown in the figure. Find the angular frequency (in rad/s) for small oscillations. ​ ​

• A)39
• B)44
• C)55
• D)66
• E)25

---

Definitions:

Initial Investments

The initial capital outlay required to start a project, purchase assets, or establish business operations.

Internal Rate

Refers to the calculation used to estimate the profitability of potential investments, specifically the internal rate of return (IRR) on a project.

Net Present Value

The difference between the present value of cash inflows and the present value of cash outflows over a period of time, used for analyzing the profitability of investments or projects.

Discount Rate

The interest rate used in discounted cash flow (DCF) analyses to determine the present value of future cash flows.