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Please use papers to do the work for the calculations Assignment #5 - Forces Questions should have free body diagrams where applicable Calculation Questions 1.

Please use papers to do the work for the calculations

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Assignment #5 - Forces Questions should have free body diagrams where applicable Calculation Questions 1. After a failed jewelry heist, a Jogger (J) shows their friends, Walker (W) and Sprinter (S), the bag of diamonds they confiscated from a robber. The 3 "friends" get into an argument, and begin pulling on the large bag of diamonds at rest on the floor. The coefficient of static friction between the diamond bag and the floor is 0.2 The mass of the diamond bag is 50 kg The diagram shown below is a top-down view, so gravity is not visible (but is present) N W E Top-Down View S F. = 180 F = 210 50 F. = 220 a. What is the maximum force that friction can exert in any direction? b. What is the net force on the bag of diamonds? Will it move?2. Mr. B pulls a team of 8 Siberian Huskies (combined mass of 160kg) on a sled across a snowy surface using a force of 250N [Right]. The Huskies and sled are initially at rest. Assume that he has already overcome static friction, and that the coefficient of kinetic friction is 0.15. a. Draw a free body diagram (FBD) for the huskies+sled. b. Determine the frictional force c. Determine the net force acting on the sled d. What is the acceleration on the sled? e. How fast will the sled be traveling after 10 seconds? f. How far will the sled have traveled during those 10 seconds? 3. In the TV show Physical 100, teams of 10 must work together to pull a 2 tonne (2000 kg) wooden ship up a wooden ramp, angled at approximately 18". The coefficient of static friction of wood on wood has been measured to be 0.55, and the coefficient of kinetic friction is 0.3. The ship begins at rest. a. Determine the total applied force needed to begin moving the ship. b. Determine the applied force needed by a single person (assuming they share the load equally). How does this value compare with the average person's pushing/pulling force strength? C. There are a number of strategies that could be used to potentially improve the team's performance. Discuss one strategy and how it could impact the performance of a team (no calculations needed). i. Spreading sand on the wooden ramp before pulling the ship up. ii. Applying a slight upwards force while pushing/pulling the boat

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