- #1
Medicalboy
- 6
- 2
Why is the velocity in circular motion changing, why not constant?
As you said above 'Change speed or direction and velocity changes.CWatters said:Velocity is a vector that has components speed and direction.
Change speed or direction and velocity changes.
In addition any change to velocity implies an acceleration.
Certainly we can. And doing so will change the velocity.Medicalboy said:'
If we drive a car at a constant speed (40km/hr), can't we change the direction?
Medicalboy said:Why is the velocity in circular motion changing, why not constant?
Say you are driving your car and your GPS indicates that you are going North at 40 km/h. If you do something so that the 40 km/h changes or the "North" changes, then you velocity has changed.Medicalboy said:'
As you said above 'Change speed or direction and velocity changes.
So, in constant speed or velocity, we can not change direction or If we change direction, the velocity would change? say, If we drive a car at a constant speed (40km/hr), can't we change the direction?
The velocity changes in circular motion because an object moving in a circular path is constantly changing direction. This change in direction requires a change in velocity, even if the speed remains constant.
The change in velocity in circular motion is caused by the centripetal force, which is directed towards the center of the circular path. This force is necessary to keep the object moving in a curved path.
The change in velocity directly affects the acceleration in circular motion. Acceleration is defined as the rate of change of velocity, so as the velocity changes, the acceleration also changes. In circular motion, the acceleration is always directed towards the center of the circular path.
Yes, the velocity in circular motion can be constant if the object is moving at a constant speed and the direction of motion remains the same. However, the velocity's magnitude may be constant, but its direction is constantly changing.
The radius of the circular path affects the change in velocity in circular motion. A smaller radius means a tighter curve, requiring a larger change in direction and therefore a larger change in velocity. A larger radius means a wider curve, requiring a smaller change in direction and velocity.