An engineering team is testing a prototype automated magnetic levitation (maglev) carrier sled on a horizontal test track in a laboratory.
Write down the equation that relates the resultant force (FFF), mass (mmm), and acceleration (aaa) of an object.
In one calibration trial, the resultant force acting on the sled is 0.824 N0.824\text{ N}0.824 N and the total mass of the sled is 1.50 kg1.50\text{ kg}1.50 kg. Calculate the magnitude of the acceleration of the sled. Give your answer to 2 significant figures.
Suggest how the research team could modify their experimental method to reduce the influence of random errors on their calculated acceleration.