Review Part A On Apollo Moon missions, the lunar module would blast off from the Moon's surface and dock with the command module in lunar orbit. After docking, the lunar module would be jettisoned and allowed to Find the impact speed of the lunar module, given that it is jettisoned from an orbit 200 km above the lunar surface crash back onto the lunar surface. Seismometers moving with a speed of 1650 m/s . placed on the Moon's surface by the astronauts would then pick up the resulting seismic waves. VO AEd ? m/s