Spinning Wheel
Standards Assessed: 1.4, 2.3, 2.5, 3.1, 3.2, 3.3, 4.1, 4.2
Name __________________
Trigonometry
Directions: Kristi and Kasey made a motorized go-cart.
They put wheels with a 10 inch radius on it. The motor can
turn the wheels at 400 rpm (revolutions per minute). How
fast will the go-cart travel in miles per hour? Make sure you
include an explanation with necessary computations,
sketches, formulas, and notes.
To make it go faster, Kristi recommended they use 15 inch wheels. If the motor can still
turn the wheels at 400 rpm, will that increase or decrease the speed? By how much? How
could they predict the result without recalculating everything from part one?