Chapter 13, Problem 116P

Determine the speed of a satellite launched parallel to the surface of the earth so that it travels in a circular orbit 800 km from the earth’s surface.

The 150-kg glider B is being towed by airplane A, which is flying horizontally with a constant speed of v = 218 km/h. The tow cable has a length r = 51 m and may be assumed to form a straight line. The glider is gaining altitude and when e reaches 16°, the angle is increasing at the constant rate ở = 3 deg/s. At the same time the tension in the tow cable is 1235 N for this position. Calculate the aerodynamic lift L and drag D acting on the glider. Assume o = 11°. B A Part 1 Calculate the magnitude of the acceleration of glider B. Answer: a = i m/s? Attempts: 0 of 1 used Submit Answer Save for Later Part 2 The parts of this question must be completed in order. This part will be available when you complete the part above.

The 150-kg glider B is being towed by airplane A, which is flying horizontally with a constant speed of v = 218 km/h. The tow cable has a length r = 51 m and may be assumed to form a straight line. The glider is gaining altitude and when θ reaches 16°, the angle is increasing at the constant rate  = 3 deg/s. At the same time the tension in the tow cable is 1235 N for this position. Calculate the ff: a. the magnitude of the acceleration of glider B. b. aerodynamic lift L and drag D acting on the glider.

Problem 74. The 90 kg man dives from the 40 kg canoe. The velocity indicated in the figure is that of the man relative to the canoe just after loss of contact. If the man, woman, and canoe are initially at rest, determine the horizontal component of the absolute velocity of the canoe just after separation. Neglect drag on the canoe, and assume that the 60 kg woman remains motionless relative to the canoe. y 60 kg 40 kg X 90 kg 3 m/s 30°

Question about rocket and orbit is attached.

The cars of a roller-coaster ride have a speed of 30km/h as they pass over the top of the circular track neglect any friction and calculate their speed v when they reach the horizontal bottom position. At the top position, the radius of the circular path of their mass centres is 18m, and all six cars have the same mass. Also draw FBD.

Just after launch from the earth, the space-shuttle orbiter is in the 36 x 162-mi orbit shown. At the apogee point A, its speed is 17211 mi/hr. If nothing were done to modify the orbit, what would its speed be at the perigee P? Neglect aerodynamic drag. (Note that the normal practice is to add speed at A, which raises the perigee altitude to a value that is well above the bulk of the atmosphere.) The radius of the earth is 3959 mi. 17211 mi/hr 36 mi 162 mi-

A spacecraft traveling along a parabolic path toward the planet Jupiter is expected to reach point vA of magnitude 26.9 km/s. Its engines will then be fired to slow it down, placing it into an elliptic orbit which will bring it to within 100 × 103 km of Jupiter. Determine the decrease in speed ? v at point A which will place the spacecraft into the required orbit. The mass of Jupiter is 319 times the mass of the earth.

The car passes over the top of a vertical curve at A with a speed of 60kphand then passes through the bottom of a dip at B. The radii of curvature of theroad at A and B are both 100m. Find the speed of the car at B if the normalforce between the road and the tires at B is twice that at A. The mass center ofthe car is 1 meter from the road.