The pulse rate(P beats per minute) and the speed travelled by an athlete (vm/s) are related by the rule P= 60 + 15V, where 0

Question

The pulse rate(P beats per minute) and the speed travelled by an athlete (vm/s) are related by the rule P= 60 + 15V, where 0<v<8. If the runner increases speed by a constant rate of 0.5m/s per second, find the rate of change of pulse (with respect to time) when the speed reaches 6m/s.

anonymous · Answer

lol i figured it out i thought i was wrong so i didn't bother looking at the answers :)

anonymous · Answer

dP/dt = 15 *dV/dt ===> dP/dt=15*0.5 = 7.5  ===> dP/dt (at v=6) = 7.5