all questions. Thanks! 1. A treasure hunter weighing 56 kg walks 7km East in 2 hours in search of the treasure but he didn't find any. He then walks 2.5 km west in 1 hour and found the treasure. a. What is the treasure hunter's average speed for the whole journey? b. What is the treasure hunter's average velocity for the whole journey? 2. The mass of two balls is o.80 kg each and they are separated by a distance of 0.25 meters. Calculate the gravitational force between the two balls