The following equation was obtained by solving a physics problem: The best physical representation of the situation is
A)A car traveling at 16.0 m/s is 19.2° 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°.
C)A mass on a string originally horizontal has fallen 19.2° from the horizontal direction.
D)A car traveling at 16.0 m/s is on a circular curve banked at 19.2°.
E)A car traveling at 16.0 m/s and going over a semicircular mountain-top road is 19.2° down from the top.

Question

The following equation was obtained by solving a physics problem:  The best physical representation of the situation is
A)A car traveling at 16.0 m/s is 19.2° 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°. 
C)A mass on a string originally horizontal has fallen 19.2° from the horizontal direction. 
D)A car traveling at 16.0 m/s is on a circular curve banked at 19.2°. 
E)A car traveling at 16.0 m/s and going over a semicircular mountain-top road is 19.2° down from the top.

Quizplus · Accepted Answer

The equation obtained from the physics problem involves centripetal force and the banked angle of a circular curve. Therefore, the best representation of the situation is a car traveling at a constant speed of 16.0 m/s on a circular curve that is banked at an angle of 19.2°.

The Following Equation Was Obtained by Solving a Physics Problem