Questions About Normal Force and Golf Putting

AI Thread Summary
The discussion centers on understanding normal force in the context of a golfer putting a ball. The normal force is a contact force that occurs when two objects are in contact, such as the ball and the ground. In this scenario, since the ball is not moving vertically, the vertical acceleration is zero, suggesting that the net vertical force is also zero. However, this raises questions about the forces acting on the ball in the vertical direction and whether the normal force can indeed be zero. Clarifying these concepts is essential for accurately calculating normal force in golf putting scenarios.
BuBbLeS01
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I don't understand the normal force and how to calculate it. If I have a question about a golfer putting a ball with a speed and a force that s slowing it down to get to the hole, it has normal force but it would equal 0 because there is no movement in the y direction right?
 
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BuBbLeS01 said:
I don't understand the normal force and how to calculate it. If I have a question about a golfer putting a ball with a speed and a force that s slowing it down to get to the hole, it has normal force but it would equal 0 because there is no movement in the y direction right?

Normal force is a contact force: two objects must be touching for it to be present. In your problem, the ball is on the ground. As you say, there is no vertical movement. So what is true about the vertical (y-direction) acceleration of the ball? What would be the net vertical force on the ball?

Now, what forces are acting on the ball in the vertical direction? Would this imply that the normal force on the golfball is zero?
 
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