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.
When Bruce lets go of the weight, its potential energy is converted into kinetic energy as it falls due to gravity. This kinetic energy is transferred into other forms of energy, such as sound and heat, upon impact with the ground.
Primarily potential energy (possibly a little bit of kinetic energy if it is swinging back and forth). If whatever it is hanging by is severed, it will fall - transitioning from potential to kinetic energy.
Gravitational potential energy depends on mass or weight. It is the energy associated with an object's position in a gravitational field, and it increases with an object's mass or weight and height above the ground.
Lifting a weight involves potential energy — not kinetic energy. Potential energy is stored energy that an object has due to its position or state, whereas kinetic energy is the energy of motion. Once the weight is dropped or released, it converts its potential energy into kinetic energy as it falls.
Ofcourse, actually, you have to have mass in order to calculate kinetic energy. Kinetic Energy = 0.5*m*v^2 Where m is the mass. Where v is the velocity. Mass is directly proportional to the kinetic energy, the more the mass, the more the kinetic energy.
When Bruce lets go of the weight, its potential energy is converted into kinetic energy as it falls due to gravity. This kinetic energy is transferred into other forms of energy, such as sound and heat, upon impact with the ground.
Primarily potential energy (possibly a little bit of kinetic energy if it is swinging back and forth). If whatever it is hanging by is severed, it will fall - transitioning from potential to kinetic energy.
Gravitational potential energy depends on mass or weight. It is the energy associated with an object's position in a gravitational field, and it increases with an object's mass or weight and height above the ground.
Sitting on the table the stone has potential energy, relative to the ground, of weight times height, mgh. It has zero kinetic energy so its total energy is E = 0 + mgh. When it begins falling it loses potential energy (as it loses height) and gains kinetic energy ( as it picks up speed) so the sum stays the same as initially E = KE + PE = mgh. Just before it hits the ground all of its potential energy is gone and has been transformed into kinetic energy. So the kinetic energy at the bottom (1/2)mv^2 will equal the potential energy at the top.
Lifting a weight involves potential energy — not kinetic energy. Potential energy is stored energy that an object has due to its position or state, whereas kinetic energy is the energy of motion. Once the weight is dropped or released, it converts its potential energy into kinetic energy as it falls.
They're hardly ever equal. One of the few situations where they're equal is when you drop a weight to the ground from some height. Then, the gravitational potential energy and kinetic energy are equal when it's exactly in the middle of the drop, and the kinetic energy it has when it hits the ground is the same as the gravitational potential energy it had when you let it go.
Kinetic energy is the energy of motion. The amount of kinetic energy an object has depends on the mass of the object and the speed of the object. The equation is: K= (1/2)mv^2, where K=kinetic energy, m=mass, and v=speed of the object.
Ofcourse, actually, you have to have mass in order to calculate kinetic energy. Kinetic Energy = 0.5*m*v^2 Where m is the mass. Where v is the velocity. Mass is directly proportional to the kinetic energy, the more the mass, the more the kinetic energy.
Lifting a weight involves potential energy, as it represents stored energy due to the position of the weight in relation to the Earth's gravitational field. Once the weight is in motion, it converts to kinetic energy.
If you have an object on the roof it has potential energy of weight x height above the ground. When you drop it off the roof it is converted to kinetic enemy as it hits the ground, of value 1/2 its mass x velocity squared.
Weight is not directly calculated in kinetic energy. Kinetic energy is determined by an object's mass and velocity. Weight, on the other hand, is the force exerted on an object due to gravity, and is calculated using an object's mass and the acceleration due to gravity.
Kinetic energy is directly proportional to an object's speed squared, meaning that as an object's speed increases, its kinetic energy increases exponentially. Weight itself does not directly affect an object's kinetic energy, but it can impact the object's speed due to factors like friction and resistance. Ultimately, both speed and weight play a role in determining the kinetic energy of an object in motion.