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Data Sheet A v vs. Fe (m, r are constant) I, 1122-awol kg constant value of m =

ID: 1778709 • Letter: D

Question

Data Sheet A v vs. Fe (m, r are constant) I, 1122-awol kg constant value of m = constant value of r =32na0002 m starting value of Fc = EL14 Sy N (F.-hanging mass * g) Expected Trend for T as Force Increases: T should ( increaseG decrease) (circle one) CData Table A speed = 2tr/T (mean value) (m/s) T ± 0.02 Le '86 N 1.7032 ±0.021 1.88 ±.012|2 . 53,2(o g y N I·UBg9 ±0021 1.93 ± .07·:12±27 9,3 N | .GI53 ±ong | 2. IG ±.09 21447± 39 tv %; (v2) = [2(8v/v)v2] , which simplifies to: (v2-12v(pol * * 22 éwns) The slope of the straight line forv2 vs. Fe= (4.CTt '29)-( 3 ylt 29 ±1 (4.17-3.yi)!(.34 t.22) 3.92 2. 1,24. 3.91. 9.8-5.8% 3. Calculated value ofr/m-.50 ±.001(mha . (Show calculations below.) 12 423. 4. What is the percent error of the two values? 5 100 53.137 57 .32

Explanation / Answer

1) The percentage error in the value of r=Relative uncertainty/Measured value*100%=0.002/0.212*100%=0.9%.

Similarly the per cent error in the value of m=0.001/0.423*100%=0.24%.

The percentage error of a measured quantity is an indication of the precision with which the given quantity is measured and it gives the limits between which the quantity must lie due to experimental error or error in calculation.