Asked by lisa
A cart travels a constant speed of 2.80 ± 0.01 m/s for a time of 8.80 ± 0.04 s
What is uncertainty, &deltax, in the distance, ?
What is uncertainty, &deltax, in the distance, ?
Answers
Answered by
bobpursley
x=(speed+ds)(time+dt)
x= speed*time+ speed*dt + time*ds + ds*dt
well, ds*dt is neg. so...
x+dx= speed*time + (dt*speed+ ds*time)
so dx= speed*dt + time*ds
x= speed*time+ speed*dt + time*ds + ds*dt
well, ds*dt is neg. so...
x+dx= speed*time + (dt*speed+ ds*time)
so dx= speed*dt + time*ds
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