Solution Found!
Solved: (a) How long can you play tennis on the 800 kJ
Chapter 7, Problem 59(choose chapter or problem)
Problem 59PE
(a) How long can you play tennis on the 800 kJ (about 200 kcal) of energy in a candy bar? (b) Does this seem like a long time? Discuss why exercise is necessary but may not be sufficient to cause a person to lose weight.
Questions & Answers
QUESTION:
Problem 59PE
(a) How long can you play tennis on the 800 kJ (about 200 kcal) of energy in a candy bar? (b) Does this seem like a long time? Discuss why exercise is necessary but may not be sufficient to cause a person to lose weight.
ANSWER:
Solution 59PE :
Step 1 of 2:-
To play tennis, the power required is, .
So, for each second the person needs to spend .
In a candy bar, the time for which the person can play is,
This can be converted into minutes, by dividing it by 60.
.