AP® Calculus AB-BC

Free Version

Upgrade subject to access all content


Determining the Speed of an Object from the Mach Number


The ratio of the speed of an object to the speed of sound is a dimensionless value known as the Mach number.

From the given Mach numbers, determine the speed of the object relative to air. Assume the speed of sound in air is $344\frac{m}{s}$.

Mach $1.0$

Mach $0.5$

Mach $0$

Mach $1.5$