# Problem: It is 6.00 km from your home to the physics lab. As part of your physical fitness program, you could run that distance at 10.0 km/hr (which uses up energy at the rate of 700 W), or you could walk it leisurely at 3.00 km/hr (which uses energy at 290 W).(a) Which choice would burn up more energy?(b) Why is it that the more intense exercise actually burns up less energy than the less intense one?(c) How much energy (in joules) would it burn?

###### FREE Expert Solution
87% (102 ratings)
###### Problem Details

It is 6.00 km from your home to the physics lab. As part of your physical fitness program, you could run that distance at 10.0 km/hr (which uses up energy at the rate of 700 W), or you could walk it leisurely at 3.00 km/hr (which uses energy at 290 W).
(a) Which choice would burn up more energy?
(b) Why is it that the more intense exercise actually burns up less energy than the less intense one?
(c) How much energy (in joules) would it burn?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Power concept. You can view video lessons to learn Power. Or if you need more Power practice, you can also practice Power practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Julia took 3 minutes and 58 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Connor's class at MONTGOMERY COLLEGE.