We consider a projectile motion against a linear drag force d = βbβv, where v is the velocity
of the projectile.
(a) suppose only a vertical drop (in z-direction), v = vz, from an initial height h with
an initial velocity voz = 0. obtain the corresponding equations for (a) velocity vz(t), (b)
vertical position change of the projectile z(t).
(b) consider now only a horizontal motion (with drag) v = vx, from an initial height h and
with an initial horizontal velocity vox. obtain the corresponding equations for (a) velocity
vx(t), (b) horizontal position change of the projectile x(t).
combine the horizontal and vertical equations of motion for a projectile moving against a
linear drag force, see a previous task, to (a) obtain an equation of the trajectory of the
projectile, i. e., z(x). (b) obtain an equation for the range (i. e., maximum horizontal
distance reached) of the projectile. (c) compare the range equation with an equation for
range obtained in the case of vanishing drag force. discuss the differences
Answers: 3
Physics, 21.06.2019 21:30, canyonrico05
One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?
Answers: 3
Physics, 22.06.2019 12:10, zoebtharpe
Does anyone have the answers to online physics course plato course physics, semester a v3.0
Answers: 2
Physics, 22.06.2019 14:10, momo842
Your starship, the aimless wanderer, lands on the mysterious planet mongo. as chief scientist-engineer, you make the following measurements: a 2.50-kg stone thrown upward from the ground at 14.0 m/s returns to the ground in 5.70 s ; the circumference of mongo at the equator is 2.20Γ10^5 km ; and there is no appreciable atmosphere on mongo. (a) the starship commander, captain confusion, asks for the following information: what is the mass of mongo? (b) if the aimless wanderer goes into a circular orbit 2.20Γ10^4 km above the surface of mongo, how many hours will it take the ship to complete one orbit? (c) an unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 44.0 km . to the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 23.0 m/s . if nothing is done to correct its orbit, with what speed (in km/h) will the spacecraft crash into the lunar surface?
Answers: 1
We consider a projectile motion against a linear drag force d = βbβv, where v is the velocity
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