Question

Two people timed an object with a stop watch . They each got a slightly different result how could this be ?

Answer 1

They both got slightly different results because as humans we are not that accurate enough to start and stop the stop watches accurate. Plus stop watches are not reliable

Answer 2

This experiment takes two people. ... 2. The second person starts (and stops) the stopwatch without looking at the display. ... something slightly different for each ... Do the times add up or do they start again from zero each time your finger breaks the .
.. Try it and explain the results. Table 1: Mass in Grams. Object. Mass (g).