Grade 11 Dynamics Lab Report Friction SPH3U1-02 Williams. C. By----James & Hao Feng & Henry Zhang Purpose: By measuring the friction and μ of a container and change different variables including mass‚ surface and gradient‚ get causes of the change of friction and μ. Materials: A container Three Pen bag in different mass A rough wood board A clean desk Rulers Thrust meter. Steps Prepare
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1. A book is at rest on a tabletop. A free-body diagram for this situation looks like this: Return to Questions Return to Info on Free-body diagrams Return to on-line Force Description List 2. A girl is suspended motionless from the ceiling by two ropes. A free-body diagram for this situation looks like this: Return to Questions Return to Info on Free-body diagrams Return to on-line Force Description List 3. An egg is free-falling from a nest in a tree. Neglect air resistance. A
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Dr. Raj Das Module Objectives • Introduction of slab analysis (or force balance) method for compression of a block under plane strain • Calculation of pressure distribution‚ average pressure and total force • Role of sliding and sticking friction on the pressure and forces during compression of a block Slab Analysis (or Force Balance) Method • Slab analysis in forging – Compression of a block – Axi-symmetric compression • Slab Analysis in rolling • Slab analysis
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Title: How does a moving cart rolling down a slope? Objectives: Adapt the traditional vertical and horizontal axes to a coordinate system aligned with a slope. Determine the acceleration of a cart that rolling down from a frictionless track (our assumption) by calculating theoretically and measuring experimentally. Compare the experimental and expected values of acceleration. Show that the acceleration of a cart moving down a slope (from frictionless track) is dependent on the angle of the slope
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gravity. In a free fall environment‚ terminal velocity would not occur‚ because no frictional forces would act on the object to stop it from continuing to accelerate. It this lab situation‚ the force of friction (air resistance) has an effect on the falling object. The air resistance (force of friction) that causes terminal velocity is caused by a few things. The mass‚ the density of the air‚ and the surface area all have an impact on how much air resistance there is. In this lab‚ because the density
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1. What are the two types of friction that affect the performance of your vehicle? The first type of friction that affects the mousetrap car is called rolling friction. This type of friction occurs in between the wheels of the car and the surface of the ground it moves on. The second type is called the sliding friction which occurs in between the axles and the brackets. 2. What problems related to friction did you encounter and how did you solve them? We noticed that at times the car would
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P hysics 2 06 Example P roblems Newton’ s Laws of Motion Problem 1 . A) What is the direction of the acceleration of an object that is slowing down while heading northward? Answer : The acceleration would be southward since the net force required to cause this acceleration would be southward. The change in velocity is directed southward. B) What is the acceleration of an object thrown straight up in the air‚ near the surface of the earth‚ at the very top of its flight? Answer : The acceleration is
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you are right - I just don’t know! 1. Tension‚ Weight‚ Friction: You are taking advantage of an early snow to go sledding. After a long afternoon of going up and down hills with your sled‚ you decide it is time to go home. You are thankful that you can pull your sled without climbing any more hills. As you are walking home‚ dragging the sled behind you by a rope fastened to the front of the sled‚ you wonder what the coefficient of friction of the snow on the sled is. You estimate that you are
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N force? [1.45×103 J] 3. A rope making an angle of 35.0o drags a 10.0 kg toolbox a horizontal distance of 20.0 m. The tension in the rope is 60.0 N and the constant friction force is 30.0 N. What work is done by the rope? What work is done by friction? What is the resultant work? What is the coefficient of friction between the toolbox and the floor? [983 J‚ -600 J‚ 383 J‚ 0.472] 4. A box of mass 5.0 kg is accelerated by a force across a floor at a rate of 2.0 m/s2 for 7.0 s. Find
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the surface‚ the shorter the stopping distance and the larger the mass the further the stopping distance. Friction is the force which opposes the motion of one surface over another‚ and is the means through which a vehicle may move in a straight line‚ or may turn or stop. Stopping distances are affected by friction‚ the more friction the shorter the stopping distance‚ the lower the friction the further the stopping distance. A mass of an object is the fundamental measure of the amount of matter
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