course phy 201 ?R????S???bx????assignment #021?????D????yg???
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18:09:11 Explain how to obtain the final speed and direction of motion of a projectile which starts with known velocity in the horizontal direction and falls a known vertical distance, using the analysis of vertical and horizontal motion and vectors.
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RESPONSE --> you can find both the horizontal and vertical components and combine to find the final speed and direction of motion
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18:11:03 Give at least three examples of vector quantities for which we might wish to find the components from magnitude and direction. Explain the meaning of the magnitude and the direction of each, and explain the meaning of the vector components.
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RESPONSE --> the velocity of a bullet travelling horizontally, starting 10 meters above the ground, as a first vector, and falling towards the ground using gravity as a vector, and wind resistance as a third vector.
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18:11:12 ** GOOD STUDENT RESPONSE: Examples might include: A force acting on an object causing it to move in an angular direction. A ball falling to the ground with a certain velocity and angle. A two car collision; velocity and momentum are both vector quantities and both important for analyzing the collision.. The magnitude and directiohn of the relsultant is the velocity and direction of travel. The vector components are the horizontal and vertical components that would produce the same effect as the resultant.
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RESPONSE --> ok
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