A Ball of Mass 5

question 14

Multiple Choice

A ball of mass 5.0 kg is suspended by two wires from a horizontal arm that is attached to a vertical shaft, as shown in the figure. The shaft is in uniform rotation about its axis. The rate of rotation is adjusted until the tensions in the two wires are EQUAL. At that speed, the radial acceleration of the ball is closest to

• A) 4.9 m/s².
• B) 5.9 m/s².
• C) 6.9 m/s².
• D) 7.9 m/s².
• E) 9.9 m/s².

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Definitions:

Compounded Annually

Interest calculation method where interest is added to the principal at the end of each year, and future interest calculations include this additional amount.

Interest

The cost of borrowing money or the return on investment for lenders, typically expressed as a percentage.

Rate of Return

The gain or loss on an investment over a specific period, expressed as a percentage of the investment's initial cost.

Interest Rate

The fee, shown as a percentage of the principal, that a lender requires from a borrower for the utilization of assets.