A frog is thrown horizontally from a 20 meter tall hill with an initial speed of 4 m/s. How far forward will it travel in the first second of its flight? You can ignore air
resistance.
4 m
5 m
80 m
2 m
8 m
40 m

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?