M
Macabre Chaos
Guest
A jet plane is flying with a constant speed along a straight line, at an angle of 36.0° above the horizontal, as Figure 4.30a indicates. The plane has weight vector W whose magnitude is 86500 N, and its engines provide a forward thrust vector T of 103000 N. In addition, the lift force vector L (directed perpendicular to the wings) is 7.00e+04 N and the air resistance vector R is 52200 N. Suppose that the pilot suddenly jettisons 3200 N of fuel. If the plane is to continue moving with the same velocity under the influence of the same air resistance vector R , by how much does the pilot have to reduce each of the following?
(a) the thrust
(b) the lift
Answer: 2609
The answer to the lift was 2609, so all I need is part a. I keep getting 1837.4885, but I've tried 1837.488, 1840, 1837.5 and nothing works. I want to try 1837.489, but I only have one try left, and I don't think Webassign cares about sig figs anyway.
(a) the thrust
(b) the lift
Answer: 2609
The answer to the lift was 2609, so all I need is part a. I keep getting 1837.4885, but I've tried 1837.488, 1840, 1837.5 and nothing works. I want to try 1837.489, but I only have one try left, and I don't think Webassign cares about sig figs anyway.