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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Department Of Mechanical Engineering Department Of Mechanical Engineering MEng Mechanical Engineering | Medical Glove | Nina Syafina MOHAMED SHUKOR | May 2013 | Dr. Roger Lewis | Thesis submitted to the University of Sheffield in partial fulfilment of the requirements for the degree of Master of Engineering | * Summary The first item in your thesis should be a summary. This should include‚ concisely‚ the following
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INTRODUCTION The friction material in the automotive brake system has been considered as one of the key components for overall performance of a vehicle. This is because it plays crucial roles in various aspects of the brake performance such as a stopping distance‚ pedal feel‚ counter disk wear and brake induced vibrations. A great deal of effort has been given to improve the performance of the friction material and multiphase composites have been used as a brake friction material from the early
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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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is the person’s apparent weight? (Use g = 9.8 m/s2.) A) 900 N B) 760 N C) 620 N D) 960 N Answer: A Var: 35 4) A 80 N force is needed to slide a 50.0 kg box across a flat surface at a constant velocity. What is the coefficient of kinetic friction between the box and the floor? (Use g = 9.8 m/s2.) A) 0.16 B) 0.13 C) 0.15 D) 0.18 Answer: A Var: 50+ 5) A piano mover raises a 100 kg piano at a constant rate using a frictionless pulley system‚ as shown in the figure. With roughly what
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Questions What are the two ways that friction affected the performance of your vehicle? Friction affected my vehicle by either not pushing it far enough‚ or pushing it very far. The friction of the ground would also stop my vehicle from going farther then it could’ve. My car also needed a bit of momentum to start so the friction did not help my care move at all. What problems related to friction did you encounter and how did you solve them? The friction did not help my car move. My car needed
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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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Chapter 9 Problems 1‚ 2‚ 3 = straightforward‚ intermediate‚ challenging Section 9.1 Linear Momentum and its Conservation 1. A 3.00-kg particle has a velocity of [pic]. (a) Find its x and y components of momentum. (b) Find the magnitude and direction of its momentum. 2. A 0.100-kg ball is thrown straight up into the air with an initial speed of 15.0 m/s. Find the momentum of the ball (a) at its maximum height and (b) halfway up to its maximum height. 3. How fast can you set the Earth
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