1 The force of two charges on one another is 1 9192 FE = ATE. where the units for q are Coulombs, C, for r are m, and for F are kg . m What are the units for E. ? 2. A Roborovski hamster attempts to cross a desert road in Mongolia. He first moves to the right 70 cm, then to the left 30 cm, the back to the right 90 cm and then finally back to the left for 370 cm. What is the total displacement of the hamster? What was the average speed of the little fellow if it took him 6 s to bust those moves? What is the average velocity in the same time interval? 3. A motorcycle traveling along a straight stretch of road has velocity vs time plot shown below. What is the acceleration ax at t = 2 s? What is ax at t = 10 s? How far does the object travel between 0 and 5 s? of (m/s) 4 40 20 0 2 4 6 8 10 12 14 t (s) 4 . Vector D has Dx = - 1.3 units and Dy = -2.3 units. Vector E has a magnitude of 8.0 units and is directed 150 above the x-axis. What are the components of E? What is the magnitude and direction of the vector F = D + E?\f