physics

In outer space two identical space modules are joined together by a 500.0 massless cable. These modules are rotating about their center of mass. In each module, the cable is connected to a motor,so that the modules can pull each other together. The initial tangential speed of each module is v=17.0 m/s. The modules then pull together until the distance between them is reduced by a factor of two. a) Determine the final angular speed for each module. b) Compute the work done in reducing the cable's length.

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  1. 27.2E-2 Rad/s
    and 867.MJ

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