The Following Equation Was Obtained by Solving a Physics Problem

question 5

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 traveling 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.

---

Definitions:

Friedman and Phelps

Refers to the contributions of Milton Friedman and Edmund Phelps in economics, particularly their work on the natural rate of unemployment and the expectations-augmented Phillips Curve, disputing the long-term trade-off between inflation and unemployment.

Government Expenditures

The total amount of money spent by the government on goods, services, and public projects.

Short-run Phillips Curve

A graphical representation showing an inverse relationship between the rate of inflation and the rate of unemployment in the short term.

Inflation

The pace at which overall prices for products and services escalate, causing the value of money to decline.