when you bring your bicycle to a stop where does he kinetic energy it had go?
it goes into friction on the brakes and on the road.
friction makes kinetic energy into potential energy
When a bicycle comes to a stop, the kinetic energy it had is not completely lost but rather transformed into various other forms of energy. To understand where this energy goes, let's break down the process:
1. Friction: As you brake your bicycle, the brake pads press against the wheel rims, creating friction. The friction between the brake pads and the rims converts some of the kinetic energy into thermal energy, causing the brakes and rims to heat up.
2. Air resistance: When the bicycle is in motion, it encounters air resistance or drag. As you slow down, the air resistance increases, converting some of the kinetic energy into heat due to air molecules colliding with the moving parts of the bicycle.
3. Mechanical work: Another portion of the kinetic energy is used to overcome the internal friction within the bicycle. This includes the resistance in the chain, gears, and bearings, which eventually leads to the creation of heat.
4. Vibrations and sounds: You may notice vibrations or hear sounds when you come to a stop. These are due to the remaining kinetic energy being converted into small vibrations and sound waves, resulting in a loss of energy.
Overall, the kinetic energy of the bicycle is dissipated through various processes, primarily converting into thermal energy (heat), mechanical work, and sound.