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| Thread ID: 62999 | 2005-10-26 03:51:00 | Maths Integration Whiz's Anyone | Veale (536) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 399421 | 2005-10-26 03:51:00 | Is anyone here an integration expert and willing to assist me with some integration problems? Cheers Veale |
Veale (536) | ||
| 399422 | 2005-10-26 04:28:00 | post the full question | Prescott (11) | ||
| 399423 | 2005-10-26 08:58:00 | Fire away. Have you checked out Studyit (http://www.studyit.org.nz) yet? Cheers :) |
Renmoo (66) | ||
| 399424 | 2005-10-26 10:21:00 | university maths is there for one reason, bashing differentiation and integration into your head. Post the question and I'll see what I can do. |
DangerousDave (697) | ||
| 399425 | 2005-10-26 19:36:00 | 1)A body is thrown out horizontally at 15m/s from a 50m high cliff on Mars where the acceleration due to gravity is -3.70m/s/s. Ignoring any drag, Find: i) the velocity after 1s ii) the height above the cliff base after 1s iii) when the body hits the ground iv) how far horizontally from the cliff the body travels 2) Find the area enclosed by a half cycle of y=5sin(3t) and the t axis Cheers Veale |
Veale (536) | ||
| 399426 | 2005-10-26 22:49:00 | The first problem doesn't appear to involve integration, only standard physics equations for an accerating body and constant velocity (the horizontal component). Are you wanting us to do your homework for you? The second is an integration problem but it is too long ago since high school maths... |
user (1404) | ||
| 399427 | 2005-10-26 22:58:00 | The first question needs to be done by integration. Yes this is homework, but after failing Maths 1b twice (3rd time lucky??) im grasping at straws to pass. One paper buggering up my whole course doesn't bode well with me. If helping with homework does not prick your conscience i am in desperate need of anyones assistance. Thanks in anticipation. |
Veale (536) | ||
| 399428 | 2005-10-27 00:06:00 | The first question is based on plane motion of a projectile in cartesian coordinates, and is a special case of the more general one of firing a projectile such as a shell from a gun. horizontal velocity dx/dt=u. x=horizontal axis, t=time, u=horizontal velocity hence by integrating x=ut d²y/dt²=-a y=vertical axis, a=acceleration hence by integration, y=-at² so eliminating t, y=-ax²/u², a parabola. It is now left as an exercise for the reader to complete the rest of the calculations :) The second question is based on finding what a half cycle means ie when 3t=π (thats meant to be pi.), ie integrate between t=0 and t=π/3 In general ∫sinAt= -1/A∫cosAt So again it is left as an exercise to complete the calc. |
Terry Porritt (14) | ||
| 399429 | 2005-10-27 00:27:00 | Uh huh, thats what the tuition notes read . Tuition notes do not provide answers, just like your reply! A proper answer would be preferable . |
Veale (536) | ||
| 399430 | 2005-10-27 00:50:00 | Uh huh, thats what the tuition notes read . Tuition notes do not provide answers, just like your reply! A proper answer would be preferable . Providing you with the answer won't help you pass your course at the 3rd attempt . Better by far you take the time and make the effort to do this yourself, otherwise if you meet a similar problem/equation in your next exam you will be stuffed . Cheers Billy 8-{) |
Billy T (70) | ||
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