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If the mass and kinetic energy is given what formula can you use to find velocity?
Wiki User
∙ 14y ago
Kinetic Energy is define as:
Ek = 1/2mv2
where m is the mass, and v is the velocity.
To solve for v, the equation can be rewritten as:
v = sqrt(2[Ek/m])
Wiki User
∙ 14y ago
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What 2 factors does the kinetic energy depend on?
It depends on mass and velocity. ans : it depends on the mass & speed of the moving object. no, it depends on the work & energy.
What equation use for kinetic energy?
Kinetic energy for a moving object is given as KE=mv 2 where KE is the kinetic energy, m is the mass and v the velocity.
What is kinetic energy versus square velocity?
Kinetic energy is directly proportional to the square of an object's velocity. If you graph the object's kinetic energy against the square of its speed, the graph is a straight line, and the slope of the line is 1/2 of the object's mass.
What is the relationship between kinetic energy and work?
Relationship between work and kinetic energy. Work is defined as the result of a force moving an object a distance and is stated by the equation W=Fd. But the result of the force being applied on the object also means that the object is moving with some given velocity, according to the equation for force as F=ma. From those two equations, it can be shown that work is equivalent to kinetic energy Kinetic Energy =1/2mv2
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.
When kinetic energy is the heighest?
Kinetic Energy is given by,KE = 1/2mv2 So, Kinetic energy is highest when velocity is highest..
How do you find kinetic energy if no final velocity is given?
Kinetic energy is equal to potential energy during the change
How do you solve the time by the given of mass and kinetic energy?
Kinetic energy is equal to one-half of the product of an object's mass and the square of its velocity. Velocity is change in displacement divided by time. If you have the kinetic energy and mass, you can calculate the velocity by taking the square root of the quotient of kinetic energy and mass, and thereby solving for the velocity.
What 2 factors effect an object's of kenetic energy?
Kinetic energy is (1/2) x mass x velocity2.Kinetic energy is (1/2) x mass x velocity2.Kinetic energy is (1/2) x mass x velocity2.Kinetic energy is (1/2) x mass x velocity2.
What two factors determine an object kinetic energy?
Kinetic energy is given by the following equaiton: KE = 0.5*m*v^2 Where KE is kinetic energy, m is the object's mass, and v is its velocity. In other words, an object's kinetic energy is dependent on its mass and the square of its velocity. Note that since the velocity term is squared, velocity has a larger effect on kinetic energy than mass. For example, if you double mass, the kinetic energy will also double, but if you double velocity, kinetic energy increases by a factor of four.
How would you work out the kinetic energy of an object when you are only given its weight and how far it has moved?
The value for kinetic energy is given by the formula (mass * velocity^2)/2. Since we have weight (not the same as mass) and distance moved rather than velocity we can't calculate the kinetic energy. You should note that weight and mass are not equivalent. Weight is measured in Newtons, while mass is measured in kilograms.
What 2 factors does the kinetic energy depend on?
It depends on mass and velocity. ans : it depends on the mass & speed of the moving object. no, it depends on the work & energy.
What is the formula for converting kinetic energy into thermal energy?
The kinetic energy of a body moving at velocity V meters/sec and with mass M kg is given by 1/2 x M x V2, and this will be in Joules. Thermal energy can be expressed in calories, the relation is 1 calorie = 4.2 Joules.
What equation use for kinetic energy?
Kinetic energy for a moving object is given as KE=mv 2 where KE is the kinetic energy, m is the mass and v the velocity.
What atoms of gas would have the greatest velocity if each atom had the same kinetic energy?
Hydrogen gas has the lowest mass out of ammonia, bromine, hydrogen and chlorine, so it would have the highest velocity for a given kinetic energy.
A girl on a motorbike passes by at a speed of 15 msec Her mass is 55kg What is her kinetic energy?
The kinetic energy of a 55 kg girl moving at a speed of 15m/s is?æ 6187.5 Joules. It is given by the formula 0.5mv^2 , where m is the mass of the body and v is its velocity.
How do you find the speed given joules and mass?
Use the formula for Kinetic Energy (KE), which is the energy due to the motion of an object. KE = (1/2) * (mass) * (velocity)2 where KE is in joules, mass is in kg, and velocity (or speed) would be in meters/sec...Just substitute the appropriate numbers, rearrange and solve for velocity
