Question

C10R.3

prste then just after the collision to when the cars roll into the lake, if they do. Apply an appropriate conservation law to s three collisiol ts just before the collision, the each of these three processes.) C1OR.3 A pilot makes a crash landing on the top of a mesa that stands 250 m above the surrounding plain (a mesa is a hill with very steep sides and a flat top). The pilot fixes the plane and wants to take off again, but the only reason- ably smooth patch that could be used for a runway is not long enough. The pilot estimates that the maximum speed the plane is likely to reach before going off the end of the mesa to be 45 mi/h, but the plane needs an airspeed of about 120 mi/h before the wing's lift becomes significantly larger than the plane's weight. Noting that the side of the mesa is essentially a vertical cliff, the pilot ponders whether deliberately driving the plane off the edge at 45 mi/h and diving downward as well as forward will allow the plane to pick up enough airspeed to pull out of the dive before hitting the plain below the mesa. What would you advise the pilot to do? Try it and risk crashing, or hope for rescue and risk dying of dehydration and exposure? Do not ignore either the lift or drag components of the wing's interaction with the air, but also remember that the plane has a propel- ler that can exert a forward force on the plane that is at least as strong as the backward drag force the plane experiences at speeds smaller than 120 mi/h.

Answer 1

Giiven That ntial enegy the pain tinol eneiR ot the plcin wn cernovastrp of enery 、R, 8 m/s 0.44 70um)s 163 mpalh 163 milh so, final vclodty 06 The Plan t〉 120 milh teb le hit tic 3"00nd oond to the pilot s take cho CamScanner