A worker drags a crate of mass 120-kg across a factory floor by pulling on a rope tied to the crate. The worker exerts a force of magnitude 450N on the rope, which is inclined at an upward angle of 30 degrees to the horizontal. The coefficient of Kinetic friction between the crate and the floor is .250 Draw a free body diagram and calculate A. the acceleration of the crate B. the normal force acting on the crate.