The discussion revolves around the concept of balanced and unbalanced forces in the context of a physics problem involving a ball struck by a bat. Participants are examining the forces acting on the ball at its highest point during its flight.
There is an active exploration of the forces acting on the ball, with some participants providing insights into the nature of acceleration and net force. Guidance has been offered regarding the forces acting on the ball when it is stationary and during its flight, indicating a productive direction in the discussion.
Participants note that the problem does not explicitly state the net force or the forces acting on the ball, leading to various interpretations and assumptions being questioned.
At the instant the ball leaves the bat, the bat is no longer in contact with the ball, so therefore it no longer exerts a force on the ball. So during the flight of the ball, what force (or forces) acts on it? In particular, identify the force(s) acting on the ball at the highest point. Is there an unbalanced net force acting on the ball at that point?JenL said:the question doesn't say if there is a net force but the force acting on the ball are gravity and the force from the bat
Quite so, since that is what you are expected to determine. When the ball is lying on the ground, what forces are acting on it? If a ball is falling through the air, what forces are acting on it? What equation do you know relating acceleration of a mass and the net force on it?JenL said:The question does not say if there is a net force or what forces are acting on the ball
The velocity is zero at the highest point, but not the acceleration.JenL said:Fnet= ma, but I do not understand how this equation will relate to the problem because then the acceleration would be 0 at the highest point. So Fnet= 0 meaning forces acting on the ball are balanced and the answer said that the forces are unbalanced.
Exactly.JenL said:Thank you Khemical, that helped. Haruspex, The forces on a ball lying on the ground would be reaction and gravity which would be equal and so balanced. I think I understand the acceleration bit now and the question because wouldn't the acceleration be 10ms^-2 due to the force of gravity. So then Fnet would be unbalanced?