Physics, 03.04.2020 01:58 sajasolo3467
Assume that the upward force experienced by a Bungee jumper is given by a linear relationship Fu = -c’v, where c’ is a first order drag coefficient, v is the velocity of the Bunjee jumper, and Fu is the force acting in the upward direction. Using the concepts and relations discussed in the course for this problem, answer the following: Assume that there are two jumpers. Assume that the first jumper is 85 kg and that the second jumper is 60 kg.
Calculate the drag coefficients for each of these jumpers if they must both have the same velocity of 20 m/s in 6 seconds after jumping. Both jumpers are at rest initially and both jump from the same level (elevation).
Answers: 3
Physics, 22.06.2019 14:30
Two steel balls, each of mass m, are welded to a light rod of length l and negligible mass and are initially at rest on a smooth horizontal surface. a horizontal force of magnitude f is suddenly applied to the rod as shown. determine (a) the instantaneous acceleration a of the mass center g and (b) the corresponding rate at which the angular velocity of the assembly about g is changing with time.
Answers: 2
Physics, 22.06.2019 15:50
The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.
Answers: 2
Physics, 22.06.2019 21:30
Which sections of the heating curve illustrate this process?
Answers: 2
Assume that the upward force experienced by a Bungee jumper is given by a linear relationship Fu = -...
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