Dec 1, 2009 #1 V Victor Member Joined May 16, 2008 Messages 298 Reaction score 0 Points 16 ...measurement is liable to 5%? error, find the percentage error in the speed?
Dec 1, 2009 #2 S Stever1 New member Joined Sep 6, 2008 Messages 5 Reaction score 0 Points 1 40km = 24m ------- x ------- Xkm = 60m we cross multiply 40x 60 then divide by 24 ============= 100 kmh +/- 5 kmh 24 min = +/- 1.2 min so... 105 kmh @ 25.2 plus 95 kmh @ 25.2 105 kmh @ 23.8 95 kmh @ 23.8 ================ 400 kmh @ 98 divide by 4 and you have ================ 100 kmh (@ 24.5 min)
40km = 24m ------- x ------- Xkm = 60m we cross multiply 40x 60 then divide by 24 ============= 100 kmh +/- 5 kmh 24 min = +/- 1.2 min so... 105 kmh @ 25.2 plus 95 kmh @ 25.2 105 kmh @ 23.8 95 kmh @ 23.8 ================ 400 kmh @ 98 divide by 4 and you have ================ 100 kmh (@ 24.5 min)