Assume that riding a bike burns 50 calories per mile. If you ride at a speed of 15 miles per hour, what is your average power output, in watts?

50 calories are consumed per milefor 15 miles per hour, calories consumed

= 50*15

=750 calories per hour,

this is equal to 750/3600

= 0.2083 calories/second, given that,

1 calorie per sec

= 4.19 watt, the average power output

= 0.2083*4.19

= 0.873 Watts