n warp engine nacelle. He finds he has drifted away from the shuttle while carelessly daydreaming. Miraculously, a stray photon torpedo casing (mass 2,220 kg) appears. Wharf uses this casing to get back to the shuttle by pushing against the casing. If the casing moves directly away from the shuttle after this push with a speed 0.2 m/s, and it then takes him 4 seconds to reach the shuttle again, how far away was he from the shuttle, in m?