Every particle or object contains energy which can be used for various purposes. In physics we often need to compute the energy of the object to study various attributes of the system. We basically need to compute potential energy and kinetic energy within the object. This article on how to calculate energy will help you in calculating potential as well as kinetic energy of the object.
Calculating potential energy of the object:
Potential energy is the energy stored within the object. This energy is used by the object to perform various tasks. This energy in the object depends upon various attributes such as the position of the object, force exerted upon the object or upon the configuration of the object.
The formula for calculating potential energy of an object is given as:
P.E = m × g × h
In the above formula,
- P.E is the potential energy of the object
- “m” is the mass of the object
- “g” is the gravitational force acting upon the object
- “h” is the height of the object
This formula can be used to calculate potential energy due to gravity.
Steps for calculating potential energy of the object
Step 1: Calculate the mass of the object whose potential energy is to be calculated. Calculate this mass in grams.
Step 2: Calculate the height of the object whose potential energy is to be calculated. This height should be calculated in meters. If you have calculated these values in any other units then convert them into compatible units.
Step 3: Multiply the values obtained in step 1 and step 2.
Step 4: The standard value for acceleration due to gravity is 9.8 m/s2. Multiply the value obtained in step three by this value to get the value for potential energy stored within an object.
Calculating Kinetic energy:
- Kinetic energy is the energy within the object due to the motion of the object. As long as the object is not under motion it contains potential energy. When the object is subjected to motion the potential energy stored within the object is transformed into the kinetic energy. It is called as the energy of motion for this reason.
- There are many forms of kinetic energy such as vibrational kinetic energy, rotational kinetic energy and translational kinetic energy.
- Vibrational kinetic energy is energy within the object due to the vibrational motion.
- Rotational kinetic energy within the body is the energy due to the rotational motion of the body.
- Transitional kinetic energy is due to the motion of the body form one point. We mostly need to compute translational kinetic energy.
The equation for calculating translational kinetic energy is,
KE = (1/2) × m × v2
In the above equation,
- “KE” is the kinetic energy of the object
- “m” is the mass of the object
- “ v” is the velocity of the object
The above equation shows that kinetic energy of the object is directly proportional to the square of velocity of the object i.e. when the velocity of the object increases by a multiple of 2, KE increases by a multiple of 4.
Estimating the values of mass and velocity of the object you can calculate KE.
Related Tags: Ways to calculate energy, how to calculate stored energy, calculate energy acceleration, ways calculate energy, stored potential energy pipe, how to get energy without knowing mass, how to calculate vibrational energy, how to calculate ratio of kinetic energy with rotational motion
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Dear Sir
If we have pipe 12mm Dia. , 4mm thickness , the pipe like ring outside Dia. 24 m ,
the pipe hanging over 36 polyurethane roller pipes horizontally , the pipe in tangency with wheel 40cm Dia.
the wheel connected to the end of gearbox motor shaft works to push the pipe forward ( 10 m / s ) depending on the speed required by regulator speed .
there is an over load hanging over the pipe in three points, overload weight about 850 Kg , the pipe acceleration start from ( 1 m/ s ) , final speed ( 10m /s ) .
Notice : pipe + Wheel moving under sweet water ( 35cm ) .
My question is :
1- How to calculate the Torque on the end of gear motor shaft ?
2- What is the torque ?
Regarsd
Hilal