chp 2 hw 2 - Ch2 HW2 f10 Page 1 of 3 WebAssign Ch2 HW2 f10...

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Web Assign Ch2 HW2 f10 (Homework) Ashlyn Baum Physics 303K, section B, Fall 2010 Instructor: Jim Chelikowsky Current Score : 7 / 7 Due : Wednesday, September 8, 2010 11:30 PM CDT 1. 2/2 points Question: MI3 2.3.X.010 Solution or Explanation 2. 3/3 points Question: MI3 2.3.X.009 Solution or Explanation The due date for this assignment is past. Your work can be viewed below, but no changes can be made. You're driving on a straight road (in the + x direction) at a constant speed of 25 m/s. In 9 seconds, you speed up to 37 m/s to pass a truck. (a) Assuming your car speeds up at a constant rate (constant force by the road on the tires), what is your average x component of velocity v avg, x during this maneuver? v avg, x = 31 31 m/s (b) How far do you go during this maneuver? total distance = 279 279 m Since the rate of change of the velocity is constant (constant net force, constant acceleration), the equation v avg, x = ( v ix + v fx )/2 is valid. The distance you go is v avg, x Δ t . On a straight road (taken to be in the +
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This note was uploaded on 11/21/2010 for the course PHY 56665 taught by Professor Chelikowsky during the Fall '10 term at University of Texas.

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chp 2 hw 2 - Ch2 HW2 f10 Page 1 of 3 WebAssign Ch2 HW2 f10...

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