Mechanics Fundamentals

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User Generated

User

HFRE_ERZBIRQ_YRTNY_831

Subject

Engineering

Description

I have in homework on Mechanics Fundamentals and I need help for this with all it asking for, do not forget the excel file and the summarize the results of your computer simulation in word file

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Homework #3 1. Using the information in problem #2 of homework #2, plus a kinetic friction coefficient k = 0.2 between the rocket and launch rail, develop a simulation program in Excel which describes the entire flight trajectory of that rocket, i.e. x (horizontal displacement) and y (vertical displacement) vs. time history, if it is launched on a launch rail which is one meter long and aligned at an elevation angle of 70° from the horizontal plane. As before, you should assume constant gravitational acceleration, a particle model for the rocket and thrust in the direction of velocity. Air resistance is NOT negligible through out the entire flight, i.e. from ignition (t = 0) till it lands, and can be represented by a second order model, cv?, in which v is the speed of this rocket. 2. Same as problem #1 above except the rocket's trust force is given by T = t ) Newtons, in which time t = 0 at the instant of ignition. Notes: This is an individual, not a team, assignment. Each student should submit his/her own solution. The submittal deadline is the beginning of class on Thursday, October 12. You just need to summarize the results of your computer simulations in the hard (paper) copy of your homework and there is no need to include any printout of simulation software.
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Tags: physics engineering mechanics fundamentals Mechanics Fundamentals Mechanical Systems Mechanics Engineering

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Explanation & Answer

Attached.

Running head: MECHANICS FUNDAMENTALS

1

Mechanics Fundamentals
Name of Student
Name of Professor
Course title
Date

Running head: MECHANICS FUNDAMENTALS

2

Projectile movement happens when objects are discharged at some underlying speed or
dropped and move affected by gravity.

Time (s)
0
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.1
0.11
0.12
0.13
0.14
0.15
0.16
0.17
0.18
0.19
0.2

Drag(N)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
6.780816

Thrust N)
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
70
0

0.21

6.659694386

0

0.22

6.540903329

0

0.23

6.424385597

0

0.24
0.25

6.310085729
6.197949971

0
0

0.26

6.087926215

0

0.27

5.979963932

0

0.28

5.874014125

0

0.29

5.770029265

0

0.3

5.667963244

0

0.31

5.567771322

0

0.32

5.469410081

0

0.33
0.34

5.372837377
5.278012294

0
0

Net
Force(N)
65.1
65.1
65.1
65.1
65.1
65.1
65.1
65.1
65.1
65.1
65.1
65.1
65.1
65.1
65.1
65.1
65.1
65.1
65.1
65.1
-11.680816
11.5596944
11.4409033
11.3243856
11.2100857
-11.09795
10.9879262
10.8799639
10.7740141
10.6700293
10.5679632
10.4677713
10.3694101
10.2728374
-

a(t)
130.2
130.2
130.2
130.2
130.2
130.2
130.2
130.2
130.2
130.2
130.2
130.2
130.2
130.2
130.2
130.2
130.2
130.2
130.2
130.2
-23.361632

v(t)

-23.11938877

25.8063837

-22.88180666

25.5751898

2.9

-22.64877119

25.3463717

3.2

-22.42017146
-22.19589994

25.119884
24.8956823

3.5
3.7

-21.97585243

24.6737233

4.0

-21.75992786

24.4539648

4.2

-21.54802825

24.2363655

4.4

-21.34005853

24.0208852

4.7

-21.13592649

23.8074846

4.9

-20.93554264

23.5961254

5.2

-20.73882016

23.3867699

5.4

-20.54567475
-20.35602459

23.1793817
22.973925

5.6
5.

0
1.302
2.604
3.906
5.208
6.51
7.812
9.114
10.416
11.718
13.02
14.322
15.624
16.926
18.228
19.53
20.832
22.134
23.436
24.738
26.04

Running head: MECHANICS FUNDAMENTALS

0.35

5.184895105

0

0.36

5.09344723

0

0.37

5.003631193

0

0.38

4.915410591

0

0.39
0.4

4.828750051
4.743615201

0
0

0.41

4.659972632

0

0.42

4.577789868

0

0.43

4.497035336

0

0.44

4.417678335

0

0.45

4.339689005

0

0.46

4.263038307

0

0.47

4.187697988

0

0.48

4.113640561

0

0.49

4.040839277

0

0.5

3.969268108

0

0.51

3.898901713

0

0.52

3.829715429

0

0.53

3.76168524

0

0.54

3.694787762

0

0.55

3.629000221

0

0.56
0.57

3.564300437
3.500666801

0
0

0.58

3.438078264

0

0.59

3.376514314

0

0.6

3.315954963

0

0.61

3.256380731

0

0.62

3.197772631

0

0.63

3.140112151

0

3
10.1780123
10.0848951
9.99344723
9.90363119
9.81541059
9.72875005
-9.6436152
9.55997263
9.47778987
9.39703534
9.31767833
9.23968901
9.16303831
9.08769799
9.01364056
8.94083928
8.86926811
8.79890171
8.72971543
8.66168524
8.59478776
8.52900022
8.46430044
-8.4006668
8.33807826
8.27651431
8.21595496
8.15638073
8.09777263
8.04011215

-20.16979021

22.7703647

6.

-19.98689446

22.5686668

6.3

-19.80726239

22.3687979

6.5

-19.63082118

22.1707253

6.8

-19.4575001
-19.2872304

21.9744171
21.7798421

7.0
7.2

-19.11994526

21.5869698

7.4

-18.95557974

21.3957703

7.6

-18.79407067

21.2062145

7.9

-18.63535667

21.0182738

8.1

-18.47937801

20.8319202

8.3

-18.32607661

20.6471265

8.5

-18.17539598

20.4638657

8.7

-18.02728112

20.2821117

8.9

-17.88167855

20.1018389

9.1

-17.73853622

19.9230221

9.3

-17.59780343

19.7456368

9.5

-17.45943086

19.5696587

9.7

-17.32337048

19.3950644

9.9

-17.18957552

19.2218307

10.

-17.05800044

19.049935

10.

-16.92860087
-16.8013336

18.879355
18.710069

10
10.

-16.67615653

18.5420556

10.

-16.55302863

18.375294

11.

-16.43190993

18.2097638

11.

-16.31276146

18.0454447

11.

-16.19554526

17.882317

11.

17.7203616

11.

-16.0802243

Running head: MECHANICS FUNDAMENTALS

0.64

3.083381247

0

0.65

3....