# ch5 hw 2 - Ch5 HW2 f10 corrected Page 1 of 8 WebAssign Ch5...

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Web Assign Ch5 HW2 f10 corrected (Homework) Ashlyn Baum Physics 303K, section B, Fall 2010 Instructor: Jim Chelikowsky Current Score : 28.6 / 29 Due : Sunday, October 3, 2010 11:30 PM CDT 1. 5/5 points Question: MI3 5.3.X.023 2. 1.5/1.5 points 3. 1.5/1.5 points 4. 2.6/3 points Question: MI3 5.4.X.026 A comet orbits a star in an elliptical orbit, as shown. The momentum of the comet at location A is also shown. Use the directions shown to answer the following questions. The due date for this assignment is past. Your work can be viewed below, but no changes can be made. View Key Page 1 of 8 Ch5 HW2 f10 corrected 11/21/2010 http:[email protected][email protected] ..

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You throw a ball straight up in the air. At the instant the ball reaches its highest location, what is the direction of the momentum of the ball? zero magnitude At the instant the ball reaches its highest location, what is the direction of the rate of change of momentum of the ball? -y At the instant the ball reaches its highest location, what is the direction of the net force acting on the ball? -y You launch a fan cart to the right along a track, with the fan blowing against the motion. At the instant the cart reaches its farthest location to the right (just before moving back to the left), what is the direction of the momentum of the cart? zero magnitude At the instant the cart reaches its farthest location to the right, what is the direction of the rate of change of momentum of the cart? -x At the instant the cart reaches its farthest location to the right, what is the direction of the net force acting on the cart? -x A block oscillates up and down at the end of a vertical spring. At the instant the block reaches its lowest position, what is the direction of the momentum of the block? zero magnitude
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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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ch5 hw 2 - Ch5 HW2 f10 corrected Page 1 of 8 WebAssign Ch5...

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