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Is the kinetic energy of a fallen Apple is 5.2 and is potential energy is 3.5 what is its mechanical energy?
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What is the energy in an object about to fall?
the energy in an object about to fall is potential energy then kinetic energy because when the object is not falling, it has potential energy but when it's actually falling, it has kinetic energy.
Why would the final kinetic energy before impact be less the initial potential energy of an object dropped from a kilometer height?
It is easiest to think of initial potential energy as the "distance" the object is able to fall. If it has not fallen the distance yet, then of course kinetic energy would be less.
If a 20-kg weight is 5 m above the ground and then falls toward the ground how much kinetic energy does the weight have when it is 2 m above the ground?
Calculate the gravitational potential energy between 5 m and 2 m above the ground. If you ignore air resistance, all of that potential energy will be converted to kinetic energy, so that's the answer.
Example of kinetic energy being converted to potential energy?
===> A stone or a baseball tossed straight up. -- Leaves your hand with speed ---> kinetic energy -- Slows down as it sails higher ---> loses kinetic energy -- But gains potential energy as it moves higher. -- The kinetic energy it's losing is changing into potential energy. -- Eventually, it stops rising, when all of its kinetic energy is gone. -- On the way down, its potential energy turns back into kinetic energy, until it meets the ground with a healthy 'thunk'.
The energy of shape or position?
This is called "potential" energy. For instance, a rock standing at the edge of a cliff has the potential to fall and cause physical changes. However, it has not yet fallen, so the energy is considered "potential". An unreleased, stretched elastic holds the same type of energy, as does an undetonated explosive and a tank of compressed air.
What kind of energy does a fallen object have?
a fallen object has no potential or kinetic energy
What is the energy in an object about to fall?
the energy in an object about to fall is potential energy then kinetic energy because when the object is not falling, it has potential energy but when it's actually falling, it has kinetic energy.
If a book has fallen what energy has it change from?
A falling book exhibits a change from potential energy (rest) to kinetic energy (motion).
Why would the final kinetic energy before impact be less the initial potential energy of an object dropped from a kilometer height?
It is easiest to think of initial potential energy as the "distance" the object is able to fall. If it has not fallen the distance yet, then of course kinetic energy would be less.
If a 20-kg weight is 5 m above the ground and then falls toward the ground how much kinetic energy does the weight have when it is 2 m above the ground?
Calculate the gravitational potential energy between 5 m and 2 m above the ground. If you ignore air resistance, all of that potential energy will be converted to kinetic energy, so that's the answer.
Can an object have no either potential energy and kinetic energy?
Yes. Potential energy is energy that has not yet been released. Kinetic energy is energy or an object already in motion.Think of a ball 1 mile up in the air that begins to fall. After it has fallen 10 feet, releasing some, but not all of its potential energy, it has built up some kenetic energy as well from the motion of falling 10 feet, but still has 5270 feet worth of potential energy to go. What happens as the ball falls is that it gradually changes all of its potential energy into kinetic energy.co
What do you know about interconversion of energy of kinetic energy and potential energy of free falling bodies?
The potential energy decreases as the body falls while the kinetic energy increases. P.E.=mass x gravity x height The shorter the height the less potential energy there is K.E.= 1/2 x mass x velocity^2 The velocity increases as the body falls and the bigger the velocity the more Kinetic Energy produced
Example of kinetic energy being converted to potential energy?
===> A stone or a baseball tossed straight up. -- Leaves your hand with speed ---> kinetic energy -- Slows down as it sails higher ---> loses kinetic energy -- But gains potential energy as it moves higher. -- The kinetic energy it's losing is changing into potential energy. -- Eventually, it stops rising, when all of its kinetic energy is gone. -- On the way down, its potential energy turns back into kinetic energy, until it meets the ground with a healthy 'thunk'.
Potential energy becomes kinetic energy?
Sure. This happens when an object falls down. Its potential energy will decrease, and its kinetic energy increases.Sure. This happens when an object falls down. Its potential energy will decrease, and its kinetic energy increases.Sure. This happens when an object falls down. Its potential energy will decrease, and its kinetic energy increases.Sure. This happens when an object falls down. Its potential energy will decrease, and its kinetic energy increases.
How can you find the kinetic energy without velocity in the question?
The exact method depends on how the question is phrased, but the majority of solutions will involve a conservation of energy. Since the energy of a system must always be conserved, you can determine the change in an objects kinetic energy by measuring how much potential energy it has lost. The most common examples include gravitational potential energy and free fall. For example, say you wanted to find the kinetic energy of a 10kg rock after it has fallen off a cliff 200m high once it has fallen 100 meters. First, you use the formula PE=m*g*h (where m is mass, g is the acceleration due to gravity, 9.81 m/s², and h is the distance above ground). At the top the rock is 200m up, so its potential energy is 10kg*9.81m/s²*200m = 19620J. When the rock has fallen 100 meters, it is 100 meters up, so its potential energy is 10kg*9.81m/s²*100m = 9810J. Now, to find how much kinetic energy the rock has, just calculate the change in potential energy or 19620J-9810J=9810J. The same process can be used when working with chemical, electric, or any other form of potential energy. Alternatively, you could use the definition of Work=Force * Distance if you are given that information instead. For example, if you apply a 5 Newton force over 20 meters, 5N*20m=100J of work done which is all gained by the object being pushed on.
What type of energy does an object about to fall?
potential because it hasn't fallen yet so its not using any energy
What is the speed of a 2.5-kilogram mass after it has fallen freely from rest through a distance of 12 meters?
The best way to solve this is using conservation of energy: Potential Energy=mass*gravity*(change in height)=2.5*9.8*12=294 When you release the mass, it begins transferring it's potential energy into kinetic energy, so after your fall of 12 meters all of that potential energy is converted to kinetic. Kinetic Energy=(1/2)*mass*velocty^2 so 294=(1/2)*2.5*(v^2) A bit of algebra later: v=sqrt(294*2/2.5) v=15.336 m/s But check my work because I could have messed up my math, but the logic is right.
