+ | [ Page view | A Read aloud | T) Add text Draw Unit 2 Assignment 1. Use the graphic organizer below to summarize what you have learned about kinematics. Add labelled arrows to show the connections between concepts. You can add your own notes, diagrams and equations to this organizer, creating a study tool to help you review Unit 2. (AMC) Net force Newton's first law Newton's second law Newton's third law Free body diagrams Static friction Forces Coefficient of friction Kinetic friction Uniform circular motion Centripetal force 2. Express the magnitude and direction of the net force on each of the following. Justify your answers with principles of physics. (KU) a. A drop of rain falling at constant speed b. A cord with a mass of 10 g floating on still water C. A stone with a mass of 0.1 kg just after it is dropped from the window of a stationary train d. The same stone at rest on the floor of a train, which is accelerating at 1.0 m/s 3. Draw a free body diagram for each of the following objects. (KU) a. A saucepan hanging from a hook b. A person standing at rest on the floor An air hockey puck sliding in a straight line to the right d. A toboggan pulled by a rope at an angle to the horizontal with significant friction on the toboggan 4. A ski-plane with a total mass of 1200 kg lands towards the west on a frozen lake at 30.0 m/s. The coefficient of kinetic friction between the skis and the ice is 0.200. How far does the plane slide before coming to a stop? (KU, TI) 5. Two Arctic explorers are pulling a supply sled with a total mass of 160 kg. Alphonse pulls the sled with a force of 50.0 N [E 25* N], while Bela pulls the sled with a force of 80.0 N [E 20.0' s]. Determine the acceleration of the sled. (KU, TI) 6. A box with a mass of 10.0 kg is placed on a hill that includes upwards at an angle of 30.0". The coefficient of static friction between the box and the hill is 0.582, which the coefficient of kinetic friction is 0.528. If the box is given an initial push to start it moving down the hill, will it continue moving down the hill when the initial force is removed, or will it coast to a stop? Explain. (TI) 7. A mass m, of 250 g is on a table connected to a massless pulley, as shown. The coefficient of friction between m, and the table is 0.228. What is the maximum value of m, before m, starts sliding across the table? (TI)