Since angle COB is the central angle of arc CB, the measure of arc CB = 80 degrees
(I don't know what your question is, but if you're asking about the rate, I got it.)
Answer: 2.6666... meters per second
Explanation/Calculation:
Divide 40 by 15 to get the rate. You get 2 2/3 meters or 2.6666... meters per second.
Hope this helps! :)
The answer is 2 correct me if wrong
Answer:
1 hour
Step-by-step explanation:
J = 50 mph by 2 hours
S = 50 mph by 1 hour
2-1 = 1