The total mechanical energy of an object in free fall is the sum of its kinetic energy and potential energy.
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Just before the object reaches the ground, the height (h) is zero, so the potential energy is zero. At this point, the velocity (v) is at its maximum, so the kinetic energy is at its highest. The total energy at ...
The sum of the potential energy and kinetic energy of the object remains constant throughout the fall. This is because the total mechanical energy (potential energy + kinetic energy) is conserved in the absence of air resistance and other external ...
The kinetic energy (KE) of the object at a given instant when its velocity is v is given by 1/2mv². This represents the energy due to the object’s motion.
The total energy of the object at the height h is its potential energy, which is mgh. At this point, the kinetic energy is zero, so the total energy is entirely due to its potential energy.
The kinetic energy is zero at the start because the object is initially at rest. Since kinetic energy is given by 1/2 mv², and the initial velocity (v) is zero, the kinetic energy is also zero.
In both the zigzag path and the straight vertical path, the work done by gravity is the same. Even though the zigzag path is longer, the vertical height difference h between positions A and B remains constant. Therefore, the work ...
The work done by gravity is the same for both paths. It is given by mgh, where m is the mass of the block, g is the acceleration due to gravity, and h is the vertical height difference between positions ...
Energy is transferred to the rubber band when it is stretched, becoming its potential energy.
Transferred energy becomes potential energy if it doesn’t alter an object’s velocity.