Identical Particles Are Placed at the 50-Cm and 80-Cm Marks

question 48

Multiple Choice

Identical particles are placed at the 50-cm and 80-cm marks on a metre stick of negligible mass. This rigid body is then mounted so as to rotate freely about a pivot at the 0-cm mark on the metre stick. If this body is released from rest in a horizontal position, what is the angular speed of the metre stick as it swings through its lowest position?

• A)4.2 rad/s
• B)5.4 rad/s
• C)4.6 rad/s
• D)5.0 rad/s
• E)1.7 rad/s

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Definitions:

Discount Rate

The interest rate used in discounted cash flow analysis to determine the present value of future cash flows.

Time Value of Money

The concept that money available at the present time is worth more than the same amount in the future due to its potential earning capacity.

Cash Flows

The inflows and outflows of cash for a business, representing the movement of money into and out of the organization.

Future Value of Money

A concept in finance that calculates the value of a current asset at a future date, factoring in interest or rates of return over time.