A light plane (mass = M) makes an emergency landin…


Question Description:

20.50

A light plane (mass = M) makes an emergency landing on a short runway. With its engine off, it lands at speed v0. A hook on the plane snags a cable attached to a sandbag (mass = m) and drags the sandbag along. The coefficient of friction between the sandbag and the runway is μ, and the plane’s brakes give a retarding force of Fb. How far will the plane go before it stops? Data: v0 = 39.0 m/s; M = 1017 kg; m = 130 kg; μ = 0.41; Fb = 1384 N.

Answer

20.50