The average speed v, in meters per second, of a cyclist in a race is given by the function
where t is the time in seconds. The power P, in watts, that the cyclist exerts during the race is given by the function P(v) = 0.5v² + v. Find at t= 2 seconds.
A. 4.26 watts/second
B. 3.11 watts/second
C. 2.80 watts/second
D. 2 watts/second
