2) A vendor pulls a 250N cart filled with pop cases so that it rolls at a constant velocity along a level floor where u=0.2. What is the Force applied by the vendor?

Farmer a has a deep well and needs a lot of water for her animals and crops. her neighbor, farmer b, has a shallower well. he needs less water than farmer a because his farm is smaller. in years of drought, sometimes farmer b can't get any water from his wells. what can farmer b do to decrease the likelihood of his well running dry?