BIO A food particle from your breakfast takes a circuitous path through your digestive system . Suppose its motion over a period of time can be represented by the four displacement vectors depicted in Figure 3-49 . Let the vectors have magnitudes A = 8.0 cm, B = 16 cm , C = 23 cm, and D = 5.6 cm. (a) What is the total displacement of the food particle? Give its direction relative to the direction of vector A → . (b) If the average speed of the particle is 0.010 mm/s, what is its average velocity over the time interval of the four displacements? Figure 3-49 Problem 75
BIO A food particle from your breakfast takes a circuitous path through your digestive system . Suppose its motion over a period of time can be represented by the four displacement vectors depicted in Figure 3-49 . Let the vectors have magnitudes A = 8.0 cm, B = 16 cm , C = 23 cm, and D = 5.6 cm. (a) What is the total displacement of the food particle? Give its direction relative to the direction of vector A → . (b) If the average speed of the particle is 0.010 mm/s, what is its average velocity over the time interval of the four displacements? Figure 3-49 Problem 75
BIO A food particle from your breakfast takes a circuitous path through your digestive system. Suppose its motion over a period of time can be represented by the four displacement vectors depicted in Figure 3-49. Let the vectors have magnitudes A = 8.0 cm, B = 16 cm , C = 23 cm, and D = 5.6 cm. (a) What is the total displacement of the food particle? Give its direction relative to the direction of vector
A
→
. (b) If the average speed of the particle is 0.010 mm/s, what is its average velocity over the time interval of the four displacements?
Figure 3-49 Problem 75
Definition Definition Organ system that helps in the digestion of food by mechanical and biochemical processes. The digestive system breaks down food into simpler components that enable the body to then absorb or transport nutrients. The human digestive system includes the gastrointestinal tract or alimentary canal and the associate glands. The organs of the gastrointestinal tract include the mouth, pharynx, esophagus, stomach, small intestine, and large intestine. The associated glands include salivary glands, liver, gallbladder, and pancreas.
A physics student adds two displacement vectors with magnitudes of 8.0 km and 6.0 km. Which
one of the following statements is true concerning the magnitude of the resultant
displacement?
O It must be 14.0 km.
No conclusion can be reached without knowing the directions of the vectors.
It must be 10.0 km.
O It could have any value between 2.0 km and 14.0 km depending on how the vectors are oriented.
O It could be equal to zero kilometers, depending how the vectors are oriented.
Problem 1
Suppose velocity of object 1 is given by vector v1 with magnitude 2 and direction +60° , and object
2 has velocity vector v2 with magnitude 2 and direction +300°. Find the vector V, where V = v1 -
V2, by the (a) graphical method, i.e., draw the 2 vectors v1 and v2 and solve for V graphically, and (b)
algebraic method using Cartesian components. For part (b), give your answer to 3 significant
figures. Do the results of (a) and (b) agree?
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Part D
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Which of the choices shows the correct resultant of adding the two vectors A and B shown in (Figure 2)?
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