How fast is sonic speed not the video game character

Could someone me find the answer to this problem.

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?

Explain the comparisons between nature and packingtown that appears on pages 81 and 82 answer