Ch3 HW2 S2008

# Ch3 HW2 S2008 - Ch3 HW2 S2008 10:25 AM Web Assign Ch3 HW2...

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4/25/08 10:25 AM Ch3 HW2 S2008 Page 1 of 4 http:[email protected][email protected] Ch3 HW2 S2008 (Homework) KRISTIN SEILOFF Instructor: Jennifer Curtis Description Iterative prediction of motion; gravitational force; electric force; reciprocity Instructions Reading: Sec. 3.7-3.12 (and review Sec. 3.4-3.6) Web Assign Current Score: 20 out of 24 Due: Friday, February 1, 200812:00 PM EST 1. 6/8 points | 4/4 submissions (a) In outer space, far from other objects, block 1 of mass 45 kg is at position < 7 , 5 , 0 > m, and block 2 of mass 1100 kg is at position < 17 , 5 , 0 > m. What is the (vector) gravitational force acting on block 2 due to block 1? It helps to make a sketch of the situation. grav = < 3.30165e-8 -3.32e-08 , 0 0 , 0 0 > N (b) At 4.2 seconds after noon both blocks were at rest at the positions given above. At 4.3 seconds after noon, what is the (vector) momentum of block 2? 1 = < 3.30165e-8 -3.32e-09 , 0 0 , 0 0 > kg·m/s (c) At 4.3 seconds after noon, what is the (vector) momentum of block 1? 2 = < 3.302e-9 3.32e-09 , 0 0 , 0

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4/25/08 10:25 AM Ch3 HW2 S2008 Page 2 of 4 http:[email protected][email protected] 0 > kg·m/s At 4.3 seconds after noon, which one of the following statements is true? (_) (_) Block 1 and block 2 have the same speed.
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## This note was uploaded on 10/19/2009 for the course PHYSICS 2211M taught by Professor Schatz during the Spring '06 term at Georgia Tech.

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Ch3 HW2 S2008 - Ch3 HW2 S2008 10:25 AM Web Assign Ch3 HW2...

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