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43. ssm The greatest height reported for a jump into
an airbag is 99.4 m by stuntman Dan Koko. In 1948 he
jumped from rest from the top of the Vegas World Hotel and Casino. He struck
the airbag at a speed of 39 m/s (88 mi/h). To assess the effects of air
resistance, determine how fast he would have been traveling on impact had air
resistance been absent. |
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Basic equation is |
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Since initial velocity is zero
so vf is |
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Clearly air resistance did reduce the speed from
what would happen without air resistance. |
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