The Following Equation Was Obtained by Solving a Physics Problem

question 39

Multiple Choice

The following equation was obtained by solving a physics problem: $\frac{\left(16.0 \frac{\mathrm{~m}}{\mathrm{~s}}\right) ^{2}}{(75.0 \mathrm{~m}) \left(9.80 \frac{\mathrm{~m}}{\mathrm{~s}^{2}}\right) }=\tan 19.2^{\circ}$ The best physical representation of the situation is:

• A)A car travelling at 16.0 m/s is 19.2\(\degree\) into a turn of a quarter circle on a level road.
• B)A mass on a string that is originally horizontal has fallen to where the angle between the string and the vertical direction is 19.2\(\degree\).
• C)A mass on a string originally horizontal has fallen 19.2\(\degree\) from the horizontal direction.
• D)A car traveling at 16.0 m/s is on a circular curve banked at 19.2\(\degree\).
• E)A car traveling at 16.0 m/s and going over a semicircular mountain-top road is 19.2\(\degree\) down from the top.

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