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A disc weighing 2 kg rolls without slipping over a horizontal plane with a velocity 4 ms1 Find the kinetic energy of the disc?
Shaileshpower
A disc weighing 2 kg rolls without slipping over a horizontal plane with a velocity 4 ms1 Find the kinetic energy of the disc?
Wiki User
ā 14y ago
The kinetic energy of the disc can be calculated using the formula: KE = 0.5 * m * v^2, where KE is the kinetic energy, m is the mass of the disc, and v is the velocity. Plugging in the values: KE = 0.5 * 2 kg * (4 m/s)^2 = 16 J. So, the kinetic energy of the disc is 16 Joules.
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What is the kinetic energy of a rolling ball?
The kinetic energy of a rolling ball is the sum of its translational kinetic energy and its rotational kinetic energy. For a rolling ball without slipping, the kinetic energy will be a combination of both types of energy. The formula to calculate the total kinetic energy is KE = 1/2 mv^2 + 1/2 IĻ^2, where m is the mass of the ball, v is its velocity, I is the moment of inertia, and Ļ is the angular velocity.
What will affect kinetic energy?
Kinetic energy is affected by an object's mass and its velocity. The kinetic energy of an object increases as its mass or velocity increases. Conversely, kinetic energy decreases as mass or velocity decreases.
What happends to kinetic energy when the velocity increases?
Kinetic energy is proportional to the square of the magnitude of velocity.
The factor that has the greatest effect on kinetic energy is?
The velocity of the object. Kinetic energy is directly proportional to an object's mass and the square of its velocity. Therefore, changes in velocity have a larger impact on kinetic energy compared to changes in mass.
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.
If an object weighing 90 kilograms and moving with a velocity of 20 meters per second has a kinetic energy of 4500 Joules. what is its kinetic energy when the velocity is 32 meters per second?
KE=(1/2)mv246080 Joules
What happends to kinetic energy when the velocity increases?
Kinetic energy is proportional to the square of the magnitude of velocity.
When you have kinetic energy you must have?
When you have kinetic energy, you must have a mass and a velocity since kinetic energy is half the product of the mass and the square of the velocity.
The factor that has the greatest effect on kinetic energy is?
The velocity of the object. Kinetic energy is directly proportional to an object's mass and the square of its velocity. Therefore, changes in velocity have a larger impact on kinetic energy compared to changes in mass.
Does kinetic energy increase with speed and time?
Time is not a factor, speed is velocity and velocity equates to kinetic energy. E=Mass * Velocity squared.
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.
What happens to an objects kinetic energy as its velocity increases?
Kinetic Energy increases as velocity increases. Kinetic Energy = 1/2 * Mass * Velocity2
The kinetic energy of the object moving with a velocity of 5 meter per second is 25 joules. What will be the kinetic energy when the velocity is tripled?
When the velocity is tripled to 15 meters per second, the kinetic energy will increase by a factor of 9 (3^2) since kinetic energy is proportional to the square of velocity. So, the kinetic energy will be 225 joules (25 * 9) when the velocity is tripled.
Is velocity kinetic energy?
No. This is because velocity is not a mechanical energy.
A 50 kg cannon ball is shot horizontally from a cannon at a speed of 80 ms At this speed its kinetic energy will be joules?
The kinetic energy of the cannon ball at 80 m/s velocity can be calculated using the formula KE = 0.5 * m * v^2, where m is the mass and v is the velocity. Plugging in the values, KE = 0.5 * 50 kg * (80 m/s)^2 = 160,000 Joules. Therefore, the kinetic energy of the cannon ball will be 160,000 Joules.
As kinetic energy increases what happens to mass and velocity?
As kinetic energy increases, velocity increases while mass remains constant. The kinetic energy of an object is directly proportional to the square of its velocity, so an increase in velocity will cause the kinetic energy to increase. The mass of an object does not affect its kinetic energy directly, only its momentum.
What will happen to the kinetic energy for an object if its mass is double but the velocity remains at the same?
Kinetic Energy = (1/2)*(mass)*(velocity)2 If you double the mass, then the kinetic energy will double If you double the velocity, the kinetic energy will increase by a factor of 4
