Find cord length and time to reduce the spin rate to zero

Assignment Help Physics

Reference no: EM131013352

A satellite is to be despun by means of a tangential-release yo-yo mechanism consisting of two masses, 3 kg each, wound around the midplane of the satellite. The satellite is spinning around its axis of symmetry with an angular velocity us ¼5 rad/s. The radius of the cylindrical satellite is 1.5 m and the moment of inertia about the spin axis is C ¼ 300 kg$m2.

(a) Find the cord length and the deployment time to reduce the spin rate to 1 rad/s.

(b) Find the cord length and time to reduce the spin rate to zero.

Reference no: EM131013352

Questions Cloud

How long does it take the satellite to precess : A pair of thrusters exert an external impulsive torque on the satellite, causing an instantaneous change DH of angular momentum in the direction normal to H0, so that the new angular momentum is H1, at an angle of 20o to H0, as shown in the figure..

Calculate the magnitude of the external torque required : A solid circular cylindrical satellite of radius 1 m, length 4 m, and mass 250 kg is in a circular earth orbit with a period of 90 min. The cylinder is spinning at 0.001 rad/s (no precession) around its axis, which is aligned with the y-axis of th..

Calculate the final spin rate about the z-axis : A tangential-release yo-yo despin device is also included in the satellite. If the two yo-yo masses are each 7 kg, what cord length is required to completely despin the satellite? Is it wrapped in the proper direction in the figure?

In what situations does terminated employee have no recourse : What are the possible legitimate reasons for which an employee can challenge a wrongful termination? In what situations does a terminated employee have no recourse

Find cord length and time to reduce the spin rate to zero : The satellite is spinning around its axis of symmetry with an angular velocity us ¼5 rad/s. The radius of the cylindrical satellite is 1.5 m and the moment of inertia about the spin axis is C ¼ 300 kg$m2. Find the cord length and the deployment..

Analysis of case study - fetal abnormality : Write a 500-750 word analysis of "Case Study: Fetal Abnormality."

Evaluate the integral of over the shaded domain : Evaluate the integral of f(x, y) = xy over the shaded domain D. (Assume that a =4.) ∫∫D xy dA. Evaluate the integral. (Round your answer to three decimal places.) 2∫30∫1 (7yexy) dy dx.

What impulsive torque about y-axis must thrusters impart : The body-fixed xyz axes are principal axes of inertia passing through the center of mass of the 300-kg cylindrical satellite, which is spinning at 1 rev/s about the z-axis. What impulsive torque about the y-axis must the thrusters impart to cause..

How the supply chain and the macroeconomic environment : Any cost that a health care manager can authorize or directly influence is a controllable cost. Examples of non-controllable costs for the business include: taxes, interest, costs mandated in the fulfilment of contracts, costs of having the buildings..

User Account

All Pages