Answer Happy

3 ri me 7) A boomerang is thrown by a person in the open space, the person observes its journey in the air for an elapsed time of 2.5 seconds. Its initial "77" and final position " ," of observation are: * = 5.00 m i +7.00 m +3.00 mk; and 7 -2.00 mi-6.50 m +4.00 mk What is the average velocity with which the boomerang has travelled during elapsed time of observation