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What has greater kinetic energy a car traveling at 35 miles per hour or a car traveling at 50 miles per hour?
Wiki User
∙ 16y ago
Kinetic Energy is defined as the energy associated with motion. This is in contrast to potential energy which is associated with an entity's energy at rest, and it's potential for motion.
Kinetic Energy can be calculated using this formula:
KE = 0.5*Mass*Velocity^2, where KE = Kinetic Energy
It is apparent by the formula that the same car traveling at a higher speed will have a greater kinetic energy than it does when traveling at a lower speed. Therefore, when the car travels at 50 mi/hr it has a higher kinetic energy than when it travels at 35 mi/hr. Let me just note that if we were talking about two different cars then we'd have to consider the weights of the cars.
Wiki User
∙ 16y ago
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Is the force of an object going at sixty miles an hour four times greater than an object traveling at thirty miles an hour?
No.IF both objects have the same mass, then the faster one has twice the momentumand four times the kinetic energy of the slower one. If their masses are different, thennothing can be calculated until we know the masses.
How much kinetic energy does a runner have when dashing at 7 miles per second?
7 miles per second? Don't you mean 7 meters per second?
Which is greater 100 km or 85 miles?
85 miles is greater.
Is earth traveling in thousands of miles per hour?
About 18 miles/sec around the sun, which is itself travelling about 30 miles/sec relative to local stars, which are traveling at about 300 miles/s relative to the galaxy centre, which is traveling at ? relative to local galaxies, which are traveling at... So the short answer is, yes.
Which is greater 2 miles or 9670 feet?
Two miles is greater. Two miles = 10,560 feet.
Describe the change in kinetic energy when the temperature of an object increases?
The more an objects kinetic energy increases the more it's temperature increases. An object that is traveling at 30 miles per hour will have a higher temperature than an object traveling at 10 miles per hour. This is in part due to friction. Mostly however, it is due to the fact that kinetic energy excites atoms in the object raising the objects temperature. You could put it like this: temperature = energy + atoms. Hope this helps.
Which has the most kinetic energy a 1000 kg car traveling 30 ms or a car traveling 45 ms?
WOW, 5 MILES PER SECOND. I guess that I would have to calculate the miles per hour. To do this, we must multiply 5 miles per second times 3600(the number of seconds in an hour). That is 18000 miles per hour. I like to work in the SI system, so by converting this to meters per second, we get 8.04672E3 meters per second. Kinetic energy is defined as one half mvsquared. The Kinetic Energy is equal to 3.2374E10 Joules.
Is the force of an object going at sixty miles an hour four times greater than an object traveling at thirty miles an hour?
No.IF both objects have the same mass, then the faster one has twice the momentumand four times the kinetic energy of the slower one. If their masses are different, thennothing can be calculated until we know the masses.
Define kinetic energy in terms of temperature?
The reverse is usually done .... Define temperature in terms of KE. The temperature of a body is proportional the the average Kinetic Energy of the particles (molecules or atoms) that make up the body. Can't be done the other way because a car traveling at 60 miles per hour has Kinetic energy which has nothing to do with temperature. The car doesn't care if is 100 degrees or 20 degrees.
What would the kinetic energy of a rock sitting on the ground be?
Zero. You need to think in terms of "frame of reference" as in what are you comparing the rock to. If you are an observer sitting next to the rock then the kinetic energy of the rock RELATIVE TO YOU is zero - I.E. the rock isn't moving relative to you and thus has no kinetic energy - energy of motion - relative to you. If you are an observer sitting a million miles from earth watching the rock then it is zipping around at 1000 miles per hour as the earth spins on its axis and it has significant kinetic energy RELATIVE TO YOU. You need to think in terms of "frame of reference" as in what are you comparing the rock to. If you are an observer sitting next to the rock then the kinetic energy of the rock RELATIVE TO YOU is zero - i.e. the rock isn't moving relative to you and thus has no kinetic energy - energy of motion - relative to you. If you are an observer sitting a million miles from earth watching the rock then it is zipping around at 1000 miles per hour as the earth spins on its axis and it has significant kinetic energy RELATIVE TO YOU. ---- So we don't get bored, no kinetic and no gravitational potential energy.
What are two factors that give a large meteorite more kinetic energy than a batted baseball?
Kinetic energy is determined by the formula, Ek = mv2/2, and a large meteor has more mass and velocity than a baseball. Mass matters, but the velocity gets squared. is More Information: Two factors that give any meteorite higher kinetic energy than a batted baseball, are their comparative masses and velocities. A baseball may weigh about 9 oz and travels a little over a hundred miles an hour off the bat. Even a meteorite of small mass has more kinetic energy than that because of its high velocity (maybe about 25,000 miles an hour, or more). A large meteorite would have high velocity also, but given large mass, it would have extremely high kinetic energy.
What has the most mechanical kinetic energy?
a car going 60 miles per hour
What energy transformation is it when a driver fills his car with gas then drives three hundred miles?
The major conversions are chemical energy in the fuel to heat energy in the cylinders to kinetic energy of the car. Other changes involved include chemical energy in the driver's food to kinetic energy in his muscles to operate the pump, and electrical energy in the pump to kinetic energy of the fuel as it flows into the car.
What objects has the most mechanical kinetic energy?
a car going 60 miles per hour
What is its kinetic energy when a 2000 kg car moving at twenty miles?
The answer will depend on the rate. 20 miles per day? per hour?
How many joules of kinetic energy does a 750 kg car traveling at 65 mi hr have. By what factor would its kinetic energy decreases if the car travel half as fast?
For this question, we will use the formula K = 1\2 mv2. But first, we must convert the 65 miles per hour into meters per second. Multiply miles per hour by a factor of 1.609 to get kilometers per hour. Divide this answer by 3600 to get kilometers per second. Multiply this by 1000 to get meters per second. In this case, the velocity in meters per second is aproxamitely 29 meters per second. To get the kinetic energy, we multiply one half, times the mass 750 kg, times 292 meters per second. This yields 315375 Joules. If we halved the velocity, the kinetic energy would be one-fourth that of the original kinetic energy. This is because the velocity is squared. This holds true if we go to one third the original speed. Then it would be one-ninth of the original kinetic energy.
What object carries the greatest amount of kinetic energy?
KE = m•v2The object whose mass and velocity squared give the greatest value for KE has the greatest KE.
