In what direction does the force of mass point?
I say - Always away towards the center of the circular path
In what direction does the velocity of mass point?
I say - Always away from the center of the circular path
In what direction does the acceleration of mass point?
I say - Always away from the center of the circular path
I have no idea what mass or path you are talking about. What is meant by Iforce of mass"?
Are you talking about motion in a circular path at constant speed? In that case, the mass experiences a centripetal force towards the center of the circle. If it is on a string, the string provides the centripetal force. There is also a downward gravity force. The string also balances the weight force.
A pole vaulter clears 6m. With what speed does he strike the mat in the landing area?
The direction of the force, velocity, and acceleration of a mass point in circular motion can be determined by understanding the concept of centripetal force.
Centripetal force is a force that acts towards the center of a circular path and is responsible for keeping an object in circular motion. In the case of circular motion, the force of mass point is always directed towards the center of the circular path.
So, in answer to your first question, the direction of the force of mass point is inward, towards the center of the circular path.
Now, velocity is a vector quantity that represents the rate of change of displacement. In circular motion, the velocity of the mass point is always tangent to the circular path. This means that the velocity is perpendicular to the force and points tangent to the circular path.
Therefore, your second statement is incorrect. The direction of the velocity of a mass point in circular motion is tangent to the circular path, not away from the center.
Acceleration, on the other hand, is the rate of change of velocity. In circular motion, the acceleration of a mass point is directed inward, towards the center of the circular path. This is because the object is constantly changing its direction due to the centripetal force acting on it.
So, your third statement is incorrect as well. The direction of the acceleration of a mass point in circular motion is inward, towards the center of the circular path.
To summarize:
- The force of mass point is always directed towards the center of the circular path.
- The velocity of mass point is tangent to the circular path.
- The acceleration of mass point is directed towards the center of the circular path.