Question

university physics four gyroscopes are used in the kepler space telescope to enable fine pointing of the spacecraft (unfortunately, two have failed and 3 are required to fully operate the telescope, requiring it to be repurposed in a limited role). model these as solid steel cylinders with a mass of 9.85kg and diameter 0.0700m.their top speeds are 1200 rev/min. at this angular speed, what is kinetic energy of one of the gyroscopes?

Answer 1