You can
put this solution on YOUR website!First to change km to m, multiply by 1000, and to change from m to cm, you must multiply by 100. In other words multiply by 100,000. To change from a time per hour to a time per second, you must divide by 3600 (that is, 60 minutes in an hour and 60 seconds in a minute).
Final answer then is to do take

= 666.67 cm/sec.
R^2 at SCC