A Small Car of Mass M Travels Along a Straight

question 16

Multiple Choice

A small car of mass M travels along a straight, horizontal track. As suggested in the figure, the track then bends into a vertical circle of radius R.
-Which one of the following expressions determines the minimum speed that the car must have at the top of the track if it is to remain in contact with the track?

• A)v = MgR
• B)v = 2gR
• C)v² = 2gR
• D)v² = gR
• E)v = gR

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Definitions:

Sharpe Measure

A metric used to evaluate the risk-adjusted return of an investment portfolio, comparing its excess return to the standard deviation of the portfolio's returns.

Risk-Free Return

The theoretical return on an investment with zero risk of financial loss, typically associated with government bonds.

Time-Weighted Return

A method to measure the rate of return of an investment portfolio which eliminates the distorting effects of inflows and outflows of money.

Dividend

Dividend represents the distribution of a portion of a company's earnings, decided by the board of directors, to a class of its shareholders.