EBK MATLAB: AN INTRODUCTION WITH APPLIC
5th Edition
ISBN: 8220102007642
Author: GILAT
Publisher: YUZU
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Chapter 11, Problem 26P
The velocity of a skydiver whose parachute is still closed can be modeled by assuming that the air resistance is proportional to the velocity.
From Newton’s second law of motion the relationship between the mass m of the skydiver and his velocity v is given by (down is positive):
where c is a drag constant and g is the gravitational constant (g = 9.81 m/s2).
(a) Solve the equation for v in terms of m, g, c, and i, assuming that the initial velocity of the skydiver is zero.
(h) It is observed that 4 s after a 90-k skydiver jumps out of an airplane, his velocity is 28 in/s. Determine the constant c.
(c) Make a plot of the skydiver velocity as a
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Chapter 11 Solutions
EBK MATLAB: AN INTRODUCTION WITH APPLIC
Ch. 11 - Prob. 1PCh. 11 - Define y as a symbolic variable and create the two...Ch. 11 - Prob. 3PCh. 11 - Prob. 4PCh. 11 - Prob. 5PCh. 11 - Use the commands from Section 11.2 to show that:...Ch. 11 - Prob. 7PCh. 11 - Prob. 8PCh. 11 - The relation between the tension T and the steady...Ch. 11 - Consider the two ellipses in the x y plane given...
Ch. 11 - A 120 in.—long beam AB is attached to the wall...Ch. 11 - A box of mass m is being pulled by a rope as...Ch. 11 - The mechanical power output P in a contracting...Ch. 11 - Prob. 14PCh. 11 - A tracking radar antenna is locked on an airplane...Ch. 11 - Prob. 16PCh. 11 - Define x as a symbolic variable and create the...Ch. 11 - Prob. 18PCh. 11 - The one-dimensional diffusion equation is given...Ch. 11 - A ceramic tile has the design shown in the figure....Ch. 11 - Show that the location of the centroid ycof the...Ch. 11 - Prob. 22PCh. 11 - Prob. 23PCh. 11 - The spread of an infection from a single...Ch. 11 - The Maxwell-Boltzmann probability density function...Ch. 11 - The velocity of a skydiver whose parachute is...Ch. 11 - 27. A resistor R (R = 0.4?) and an inductor L (L =...Ch. 11 - Prob. 28PCh. 11 - Determine the solution of the following...Ch. 11 - 30. The current, i, in a series RLC circuit when...Ch. 11 - Damped free vibrations can be modeled by a block...
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