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.
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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.