A stone can slide down one of four different frictionless ramps, as shown in the figure. For which ramp will the speed of the ball be the greatest at the bottom? 
Definitions:
Interest Rate
The part of a loan that incurs interest fees for the borrower, customarily indicated as an annual percentage of the unpaid loan.
Discretionary Policies
Economic strategies, involving government spending and taxation, that are implemented at the discretion of the government to manage economic fluctuations.
Monetarist Economists
Economists who believe that variations in the money supply have major influences on national output in the short run and the price level over longer periods.
Phillips Curve
Curve showing inverse relationship between the unemployment rate and the rate of inflation.
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