Nikolas has a idea that he could use the compressed carbon dioxide in a fire extinguisher to propel him on his skateboard. nikolas, the fire extinguisher, and the skateboard have a combined mass of 50kg. what force would the fire extinguisher have to produce to propel nikolas if he wanted to accelerate at a rate of 1.2 m/s^2? round your answer to the nearest whole newton. 60 n which of newton’s laws did nikolas have to use to calculate this force