you are helping a friend you estimate it takes a force of 1665.5N to draw everything across the level grass at a constant speed. There is a small hill that makes an angle of 17 degrees above horizontal and you will have to draw everything along the hill for about 5.1m. the mass of the wood board plus everything is 309kg.
what is the coefficient of friction between the wood board and grass? assume you are pulling horizontally on the rope.
what is the normal force on the wood board by the ground when it is on the hill slope?
how hard will you need to pull on the rope to keep the wood boardmoving at a constant sped?