du 2:02 AM 15%) D+ edugen.Wileypus.com WileyPLUSmaea ww.Chag.Chapter 08, Problem

Question

du 2:02 AM 15%) D+ edugen.Wileypus.com WileyPLUSmaea ww.Chag.Chapter 08, Problem 050 A 57 kg skier leaves the end of a ski-jump ramp with a velocity of 29 m/s directed 26° above the horizontal. Suppose that as a result of air drag the 8 hvle skier returns to the ground with a speed of 21 m/s, landing 16 m vertically below the end of the ramp. From the launch to the return to the ground, by how much is the mechanical energy of the skier-Earth system reduced because of air drag? -teros.hwn the tolerance is +/-4% Question Assistance, you w

Explanation / Answer

initial mech energy = 57*g *h +1/2 *57 *29^2

let the ground is reference level..
h= 0;
initial mech energy =1/2 *57 *29^2 =23968.5 J

final mech energy = 1/2 *57*21^2 - 57 *9.8* 16
=3630.9 J
mech energy reduced = 23968.5-3630.9 j

=20337.6 J

Please don't forget to rate positively if you found this response helpful. Feel free to comment on the answer if some part is not clear or you would like to be elaborated upon. Thanks and have a good day!

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.