18.5: Analysis


1. Was the amount of energy you used to lift a particular dumbbell different than the energy used to lower that dumbbell?  Explain.

2. Was the amount of mechanical work done to lift a particular dumbbell different than the work to lower that dumbbell?  Explain.

3. Look at the list of measurements for your team while each person held a dumbbell overhead.  In which case would there be the most work done on a toe if the dumbbell fell from overhead to the person’s toe?  Why?