Sam Whose Mass Is 75 Kg Straps On His Skis And Starts Down A 50 M High 20 Fricti

 Sam, whose mass is 75 kg, straps on his skis and starts down a 50 m high 20° frictionless slope. A strong headwind exerts a horizontal force of 200 N on him as he skies. Use work and energy methods to find Sam’s speed at the bottom. 

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