Using the numbered direction arrows shown, indicate (by number) which direction
ID: 1628249 • Letter: U
Question
Using the numbered direction arrows shown, indicate (by number) which direction arrow best represents the direction of the quantities listed below. If the quantity has zero magnitude or cannot be determined, indicate using the corresponding number listed below. The position vector at location D _____ The change in position (the displacement) between location D and location F _____ The change in velocity between location D and location F _____ The change in momentum between location D and location F _____ The average net force between location D and location F _____ The position vector at location E _____ The change in position (the displacement) between location D and location E _____ The change in velocity between location D and location E _____ The change in momentum between location D and location E _____ The average net force between location D and location EExplanation / Answer
1. position vectro at D : 3, the vector point to the right and 3 is to the right direction
2. Displacement fro D to F : 6 , if we draw a vector from D to F, with D as origin the direction is same as 6
3. 7, chnage in velcoity is VF - VD , VF = VD by magnitude, if we take VD as +ve and VF as -ve the chnage is -ve (to the left) and arrow 7 is to the left
4. 10, without knowledge of mass we cannot determine the momentum
5. 9. both forces at F and D are equel in magnitude and opposite in direction and hence the magnitude is 0
6. 1, the vector at E and 1 are in the same direction upward.
7. 1, the chnage is position from D to E same as vectro 1, E^ -D^
8. 10, we need to have the magnitudes of VE and VD to know the direction of VE - VD to know the chnage in velocity from D to E.
9. 10, same as 8, we need to know the magnitudes of velocities and the mass to know the momentum and the change in momentum
10.10, we need to know the magnitudes of force at D and E
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