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July 7, 2015

Homework Help: Physics

Posted by Perry on Thursday, October 25, 2012 at 3:04pm.

A jet plane is flying with a constant speed along a straight line, at an angle of 26.5 above the horizontal, as Figure 4.30a indicates. The plane has weight whose magnitude is 86500 N, and its engines provide a forward thrust of 103000 N. In addition, the lift force (directed perpendicular to the wings) is 77412 N and the air resistance is 64404 N. Suppose that the pilot suddenly jettisons 2850 N of fuel. If the plane is to continue moving with the same velocity under the influence of the same air resistance , by how much does the pilot have to reduce each of the following?
(a) the thrust
N

(b) the lift

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