Suppose that we are able to travel past the Earth in a straight line. We travel a distance 4.01107 m at a speed of 0.9007 c.

Suppose that we are able to travel past the Earth in a straight line. We travel a distance 4.01×107 m at a speed of 0.9007 c. (a) How long would this take as measured by someone standing on the Earth?(b) How long would this take as measured by us in our moving reference frame?