the greatest height reported for a jump into an airbag is 99.4 m. Dan Koko jumped from a Vegas hotel and struck the airbag with a speed of 39 m/s. To assess the effects of air resitance determine how fast he would have been traveling on impact if air resistance had been absent.
2007-09-14 17:01:34 · 4 answers · asked by smarin1987 2 in Science & Mathematics ➔ Physics
This is a simple mgh=1/2m v-squared problem.
i.e. potential energy = kinetic energy
Jim, http://www.life-after-harry-potter.com
2007-09-14 17:09:30 · answer #1 · answered by Anonymous · 0⤊ 0⤋
however long your arm is. He said hes walking along it so his distance form the building never changes. If the question is not a trick question then use your kinematics eqns (you know, 1/2at^2, that stuff) to calc the free fall time. Then you know your profs speed is 1.2 m/s. so in one sec he moves 1.2 meters. You already have the number of seconds the egg was falling from your first eqn so you can figure out the distance he moves in that amount of time. Hope this helped!
2016-05-19 23:31:36 · answer #2 · answered by meghann 3 · 0⤊ 0⤋
looks like v^2=v^2+2as
v^2=0^2+2(9.8)(99.4)
v=44m/s
means air resistance made him travel 5m/s slower
2007-09-14 17:20:23 · answer #3 · answered by climberguy12 7 · 1⤊ 0⤋
44,14 m/s
2007-09-18 10:56:59 · answer #4 · answered by johnandeileen2000 7 · 1⤊ 1⤋