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Subject:
Some basic physics problems
Category: Science > Physics Asked by: fikal-ga List Price: $5.00 |
Posted:
05 Feb 2005 11:52 PST
Expires: 06 Feb 2005 12:47 PST Question ID: 469532 |
Ive been having a rough time with a few physics problems for my class. I was wondering if someone could work these out for me so that I can get an idea on how to do them. Thanks 1) Coasting due south on your bicycle at 8.0 m/s, you encounter a sandy patch of road 8.2 m across. When you leave the sandy patch your speed has been reduced to 6.7 m/s. Assuming the bicycle slows with constant acceleration, what was its acceleration in the sandy patch? What is the magnitude. 2) An arrow is fired with a speed of 18.0 m/s at a block of Styrofoam resting on a smooth surface. The arrow penetrates a certain distance into the block before coming to rest relative to it. During this process the arrow's deceleration has a magnitude of 1600 m/s2 and the block's acceleration has a magnitude of 450 m/s2. (a) How long does it take for the arrow to stop moving with respect to the block? (In seconds) (b) What is the common speed of the arrow and block when this happens? (m/s) (c) How far into the block does the arrow penetrate? (m) -Ryan |
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There is no answer at this time. |
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Subject:
Re: Some basic physics problems
From: tutuzdad-ga on 05 Feb 2005 12:10 PST |
Here is the formula. You will only need to adjust it to suit your specific data: PHYS 1110, FALL 2004, QUIZ #2 http://www.physics.unomaha.edu:16080/sowell/phys1110/Quizzes/quiz2.html Let me know if this answers your question. Tutuzdad-ga |
Subject:
Re: Some basic physics problems
From: fikal-ga on 05 Feb 2005 13:42 PST |
Its funny, because right after i posted the first question I was able to figure it out. But I really need help on the second question. |
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