A ski jumper leaves the jump ramp with an initial speed of 28.1 m/s and a height (relative to the bottom of the ski hill) of 46.2 meters. She encounters -6627 Joules of work due to air resistance during her flight through the air. Determine the speed (in m/s) of her 45.2-kg body the instant prior to striking the ground at the bottom of the hill.
A physics teacher does 26.2 Joules of work on a 2.31-kg pile of snow to both lift it off the ground and to set it into motion. The pile of snow leaves the shovel with a speed of 1.73 m/s. What is the height (in m) of the snow when it leaves the shovel? Enter your answer accurate to the third decimal place.© BrainMass Inc. brainmass.com December 24, 2021, 5:40 pm ad1c9bdddf
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