FORCES : Cite and explain three ways in which the concept of Forces has helped in the advancement of medical field.
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Q: hat are the symbols for frictional force, applied force, normal force, and gravitational force
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- Jason is pulling a box across the room. He is pulling with a force of 15 newtons and his arm is making a 77 angle with the horizontal, if the box weighs 9 newtons what is the net force on the box in the vertical direction? Treat up as the positive direction, and down as the negative direction.Using two force sensors, design an experiment to determine the magnitudes and directions of the forces between two objects that interact with each other directly (touching, pushing, pulling, colliding, etc). Detail what the experiment will involve. What is the final conclusion?Efficient and safe transportation depends on friction being either minimized or maximized, as necessary. Using research, find a) one example in which friction is maximized to aid in transportation. b) one example in which friction is minimized to aid in transportation. For each situation, explain how the friction is maximized/minimized and why this is necessary or beneficial. c) Give at least one source that you used for your research.
- Jacoo Is holding the handle of a wagon. Then he begins to pull the wagon. Which picture shows the forces on the wagon before the wagon begins to move? OA. Pull Friction B. Pull Friction Pull Friction OD. Pull FrictionA scaffold suspended from a building by two ropes one painters on it. The painter has a force of 400N going down and the scaffold has a force of 120 N going down as well. The left rope holding up the scaffold has a force of 320N up. If the forces going up are balanced (Force net =0) with the forces going down- How much force is on the other rope?______newtons.The diagram represents the forces acting on a block that accelerates at 5.0 m/s/s on a frictionless surface. What is the mass of the block?
- Caleb wants to create a block and tackle pulley system that lift a 500 N weight. He can apply a 100 N force. How many segments of rope should be attached to the block and tackle?What design aspects of a snowmobile make it useful for traveling over ice and snow? Be sure to explain your answer fully and using the principles from Newton law and friction.To be clear: You must write the words "Newton's Second Law" and point to an example of it within your solution! Write out the second law using symbols, not numbers. Writing "net force = m a" does not qualify because that could be written for any object. The symbols and subscripts should clearly refer to specific forces in each diagram. Examples, good and bad, of what might qualify are shown below. The following are three examples of Newton's second law written for an object called "E" (which is not in this question). Credit would be given for the first example but not for the second or third. This is a good example: mE g−TEJ sinθ1+NER cosθ2=mE a This is a bad example that is not specific enough: Σ FE=mE a This is a bad example with unspecified numbers and without symbols: (1.7 kg) g−(3.8 N) sin(59∘)+(4.9 N)cos(34∘)=(1.7 kg) a Once you have begun your solution with symbols in Newton's Second Law, you may begin to substitute numbers as needed.