Quiz– What is coast distance for a Vex Robot

Here is a chance to apply some high school physics to your vex robot.

Question?  How long will my vex robot take to slow down from

maximum speed?

N_wheel 4.0 Number of motors slowing robot down
r_wheel 2.0
in radius of wheel in inches
tq_drag 2.0
in_lb drag torque of standard vex motor
w_max 10.0
rad/sec no_load speed of vex motor
Wt 10.0
lbs robot weight
ratio 1.7 wheel speed / motor shaft speed
g 386.4 in/s/s gravity

Answer: https://vamfun.files.wordpress.com/2009/11/coast-distance3.doc


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