# F98 - Physics 4A FIRST EXAM Chapters 1 - 4 Fall 1998 Name:_...

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Physics 4A FIRST EXAM Chapters 1 - 4 Fall 1998 1 Name:_________________________________________ Solve the following problems in the space provided. Use the back of the page if needed. Each problem is worth 20 points. You must show your work in a logical fashion starting with the correctly applied physical principles which are on the last page. Your score will be maximized if your work is easy to follow because partial credit will be awarded. 1. The vector r a = 4.00 ˆ i - 3.00 ˆ j and the vector r b = - 2.00 ˆ i + 4.00 ˆ j . (a)Sketch the vectors r a and r b . (b)Find the x and y components of r r = r a + r b . (c)Sketch r r . (d)Find the magnitude and direction of r r . y x

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Physics 4A FIRST EXAM Chapters 1 - 4 Fall 1998 2 2. Using the graph of position versus time for an object shown at the right, estimate the time or times when the object (a)is to the right of the origin, (b)is to the left of the origin, (c)is at the origin, (d)has a positive velocity, (e)has a negative velocity,
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## This note was uploaded on 03/11/2012 for the course PHYSICS 204A taught by Professor Kagan during the Fall '09 term at CSU Chico.

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F98 - Physics 4A FIRST EXAM Chapters 1 - 4 Fall 1998 Name:_...

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