Asked by anonymous
8) The table below shows the wind pressure on a structure at different heights in psi. (1 psi=1 N/m^2). Using linear interpolation, estimate the pressure at a height of 17ft. 6 in. (3 marks]
height (ft) pressure (pa)
13ft 254 pa
14 ft 296 pa
15 ft 278 pa
16 ft 287 pa
17ft 296 pa
18 ft 311 pa
19 ft 319pa
20 ft 326 pa
height (ft) pressure (pa)
13ft 254 pa
14 ft 296 pa
15 ft 278 pa
16 ft 287 pa
17ft 296 pa
18 ft 311 pa
19 ft 319pa
20 ft 326 pa
Answers
Answered by
oobleck
The slope of the line segment between (17,296) and (18,311) is 15
So, f(17.6) = 6/10 of the way from 296 to 311:
f(17) + (17.6 - 17)*15 = 296+9 = 305
So, f(17.6) = 6/10 of the way from 296 to 311:
f(17) + (17.6 - 17)*15 = 296+9 = 305
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