Asked by Anonymous
You are participating in the Iditarod, and your sled dogs are pulling you across a frozen lake with a force of 1200N while a 300N wind is blowing at you at 135 degree from your direction of travel. What is the net force, and will your kinetic energy increase or decrease?
Answers
Answered by
Henry
Fn = 1200 + 300[135o] = 1200 + 300*Cos135+i300*sin135 = 989 + 212i = 1011N.
KE decreased.
KE decreased.
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