|
|
Ft/Min
|
In/Min
|
In/Sec
|
Sec/In
|
Ft/Min
|
ln/Min
|
In/Sec
|
Sec/In
|
|
1
|
12
|
0.2
|
5.000
|
60
|
720
|
12
|
0.0833
|
|
2
|
24
|
0.4
|
2.500
|
70
|
840
|
14
|
0.0714
|
|
3
|
36
|
0.6
|
1.667
|
80
|
960
|
16
|
0.0625
|
|
4
|
48
|
0.8
|
1.25
|
90
|
1,080
|
18
|
0.0556
|
|
5
|
60
|
1
|
1
|
100
|
1,200
|
20
|
0.05
|
|
6
|
72
|
1.2
|
0.833
|
125
|
1,500
|
25
|
0.04
|
|
7
|
84
|
1.4
|
0.714
|
150
|
1,800
|
30
|
0.0333
|
|
8
|
96
|
1.6
|
0.625
|
175
|
2,100
|
35
|
0.0286
|
|
9
|
108
|
1.8
|
0.556
|
200
|
2,400
|
40
|
0.025
|
|
10
|
120
|
2
|
0.5
|
225
|
2,700
|
45
|
0.0222
|
|
11
|
132
|
2.2
|
0.455
|
250
|
3,000
|
50
|
0.02
|
|
12
|
144
|
2.4
|
0.417
|
275
|
3,300
|
55
|
0.0182
|
|
•13
|
156
|
2.6
|
0.385
|
300
|
3,600
|
60
|
0.0167
|
|
14
|
168
|
2.8
|
0.357
|
350
|
4,200
|
70
|
0.0143
|
|
15
|
180
|
3
|
0.333
|
400
|
4,800
|
80
|
0.0125
|
|
16
|
192
|
3.2
|
0.313
|
450
|
5,400
|
90
|
0.0111
|
|
17
|
204
|
3.4
|
0.294
|
500
|
6,000
|
100
|
0.01
|
|
18
|
216
|
3.6
|
0.278
|
600
|
7,200
|
120
|
0.0083
|
|
19
|
228
|
3.8
|
0.263
|
700
|
8,400
|
140
|
0.0071
|
|
20
|
240
|
4
|
0.25
|
800
|
9,600
|
160
|
0.0063
|
|
25
|
300
|
5
|
0.2
|
900
|
10,800
|
180
|
0.0056
|
|
30
|
360
|
6
|
0.167
|
1,000
|
12,000
|
200
|
0.005
|
|
35
|
420
|
7
|
0.143
|
1,500
|
18,000.
|
300
|
0.0033
|
|
40
|
480
|
8
|
0.125
|
2,000
|
24,000
|
400
|
0.0025
|
|
45
|
540
|
9
|
0.111
|
3,000
|
36,000
|
600
|
0.0017
|
|
50
|
600
|
10
|
0.1
|
5,000
|
60,000
|
1,000
|
0.001
|
Example: Find the time the photocell will see a ¼"
registration mark at 70 Ft/Min
Answer: .25 inches X .0714 Sec/In = .018 Seconds or 18 mili-seconds.
For Speeds Not Given:
Ft/Min ÷ 5 = In/Sec 1 ÷ In/Sec = Sec/In
1.000 = 1 second
0.100 = 100 mili-second
0.010 = 10 mili-second
0.001 = 1 mili-second
0.0001 = 100 micro-second
|