Well, I dont know about keeping the motor going / at constant revs for that long - someone else'll have to chime in on that.
Otherwise, go to Home Depot with your wife / girlfriend / friend / whoever. take a 2x4 and load it on top of a shopping cart. Now straddle the 2x4 while your friend pushes you around the store for an hour. Should be about equiavalent to how you'll feel at the end of that trip
Otherwise, go to Home Depot with your wife / girlfriend / friend / whoever. take a 2x4 and load it on top of a shopping cart. Now straddle the 2x4 while your friend pushes you around the store for an hour. Should be about equiavalent to how you'll feel at the end of that trip