Every aspect of basketball has some type of force working upon it. For example‚ without friction a basketball player would be unable to stop because inertia states that objects in motion tend to stay in motion. Without friction acting upon the player‚ there is no force to stop him‚ until he hits a wall that is. With this information you can come to the conclusion that without forces‚ there would be no game of basketball. However‚ what exactly is a force? Webster’s dictionary defines force as a push
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venturi meters. 3.1.2. Theory When a fluid flows along a pipe‚ friction between the fluid and the pipe wall causes a loss of energy. This energy loss shows itself as a progressive fall in pressure along the pipe and varies with the rate of the flow. The head loss due to friction can be calculated by the expression: Lu 2 D hf 4 f (3.1.1) where hf : head loss due to friction‚ m H2O D : diameter of pipe‚ m f : friction factor g : acceleration due to gravity‚ m/sec2 L : length of pipe
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Convection Currents in the Mantle Tuesday‚ 25 June 2013 11:10 AM "Movement of the Crust" There are many different reasons why the earth’s crust is moving. Some for example are the friction between two plates causing major earthquakes. Sometimes when this plates are pushed together they form fold mountains or ridges. Today we know that the continents are gradually moving apart. Therefore the there is new rocks created in between those areas. New volcanoes are created and new rocks are
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brake. 2. Who invented the drum brake? In what year did this occur? In 1902 Louis Renault invented the internal expanding drum brake. 3. Why was the drum brake superior to its predecessors? First‚ the shoes are enclosed on the drum so the friction lining is away from water or dirt‚ so they last longer. The drum brake also exhibits servo-assistance‚ in both forward and reverse; the leading shoe exhibits servo assistance in forward travel‚ the trailing shoe
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THE ECU AND TRACTION CONTROL. Some of the biggest advances in automotive technology in the past 10 years have come in the area of safety. Spurred by improvements in microprocessor speed‚ miniaturization‚ and software development‚ the automobile continues to evolve. In addition to telemetric based services like OnStar‚ digital satellite radio and in-car e-mail‚ recent advances in braking technology have led to shorter stopping distances and increased control while driving in inclement conditions
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Momentum And Friction Physical quantities that have a magnitude and a direction in space are described by vectors. Velocity is speed and direction. Acceleration is increase in speed. Linear momentum (p) of a single particle (point-like object) in vector notation: p = m * v. Specific types of friction: Drag (wind resistance) Static (maximum occurs right before the object moves) Kinetic (usually less than static) F friction = u*N (u is just the coefficient of friction) Terminal
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Ch4&5 1.All except one of the following require the application of a net force. Which one is the exception? | Changing an object’s speed without changing its direction of motion | | Changing an object’s direction of motion without changing its speed | | Maintaining an object in uniform circular motion | | Changing an object from a state of rest to a state of motion | | Maintaining an object in motion at a constant velocity | 2.The force that accelerates a car on a level road
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resistance and how much is used to fight rolling friction and the slight internal friction (Beckman). A late model Corvette has a Cd of about 0.30 and frontal area of about 20 square feet (Beckman). Going through all the necessary conversions and math which is complicated because of converting to and from metric and force into horsepower you determine 145hp is used to balance drag and 95hp is used to balance the rolling resistance and internal friction (Beckman). This explains why fast cars have so
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what is the actual mechanical advantage on the crowbar? A. 10 Q. A 120 meter long ski lift carries people to the second station. What is the ideal mechanical advantage? A. 160 Q. Reducing the friction in a machine…. A. Efficiency Q. The efficiency is always less than 100% because why? A. Friction Q. A mechanical advantage requires 420
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a=18kg*m/s^2/ 6.00 kg = 3m/s^2 a=3m/s^2 7. Truck pulls trailer with friction force of 870 N and a coefficient of friction 0.23. What is the trailer’s normal force. 870N=.023(FN) divide by .023 FN=870N/.023 FN=37826.7N 9. mass 13.0 kg dropped from a cliff. Find its weight Fw=13.0kg * 9.8m/s^2 Fw=127.4kg*m/s^2 Fw=127.4N 13. A force of 175N needed to keep a 640N engine from sliding. What is the coefficient of static friction? Ff=175N FN=640N divide by 640N µ=175N/640N µ=.273 15. find acceleration
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