# Differences

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 phy131studiof17:lectures:chapter7 [2017/09/22 16:15]mdawber [Two Track Race Explained] phy131studiof17:lectures:chapter7 [2017/09/25 09:04] (current)mdawber [Work on a backpack] Both sides previous revision Previous revision 2017/09/25 09:04 mdawber [Work on a backpack] 2017/09/22 16:15 mdawber [Two Track Race Explained] 2017/08/04 13:41 external edit 2017/09/25 09:04 mdawber [Work on a backpack] 2017/09/22 16:15 mdawber [Two Track Race Explained] 2017/08/04 13:41 external edit Line 24: Line 24: {{fonbp.png}} {{fonbp.png}} - A hiker carries a 10kg backpack 500 m on the flat at a constant velocity. How much work do they do on the backpack? + A hiker carries a 10kg backpack ​a distance of 500 m on the flat at a constant velocity. How much work do they do on the backpack? - The hiker now climbs up a mountain that has a 5 degree incline. When he has walked 500m and still moving at the same speed how much work has he done on the backpack? + The hiker now climbs up a mountain that has a 5 degree incline. When he has walked ​a distance of  ​500m and is still moving at the same speed how much work has he done on the backpack? ===== More on the dot product ===== ===== More on the dot product =====