Car Drag Racing Takes Place Over a Distance of a

question 54

Multiple Choice

Car drag racing takes place over a distance of a mile (402 m) from a standing start.If a car (mass 1500 kg) could be propelled forward with a pulling force equal to that of gravity,what would be the change in kinetic energy and the terminal speed of the car (in mph) at the end of the race be? (For comparison,a modern,high-performance sports car may reach a terminal speed of just over 100 mph = 44.7 m/s.)

• A)604 kJ and 28.4 m/s
• B)5.92 kJ and 88.9 m/s
• C)5.92 MJ and 7900 m/s
• D)3680 kJ and 70.0 m/s
• E)5.92 MJ and 88.9 m/s

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Definitions:

Short-Run Aggregate Supply Curve

The short-run aggregate supply curve represents the relationship between the total supply of goods and services that firms in an economy are willing to produce and sell at different price levels, over a short period.

Recessionary Gap

A situation where an economy's real GDP is lower than its potential GDP, indicating underutilized resources and economic slack.

Price Level

The average of current prices across the entire spectrum of goods and services produced in the economy, often used in economic analysis and policy-making.

Expansionary Gap

A situation where the actual output of an economy exceeds its potential output, often leading to inflationary pressures.