Free Fall Experiment: Predicting Ball's Maximum Height and Time

  • Thread starter Thread starter Emily Falk
  • Start date Start date
  • Tags Tags
    Fall Free fall
AI Thread Summary
The discussion centers on a student's experiment involving the time it takes for a thrown ball to reach its maximum height. A friend predicts that a faster throw will result in a shorter time to reach that height, which is challenged by others who argue that gravity is the primary force acting on the ball after it is thrown. The consensus is that while a higher initial speed increases the maximum height, it does not necessarily reduce the time to reach that height due to the constant influence of gravity. Participants suggest that equations could clarify the relationship between initial speed and time to maximum height, emphasizing the importance of understanding these physics concepts. The conversation highlights the need for a deeper analysis of the forces at play in projectile motion.
Emily Falk

Homework Statement


When throwing a ball, a student has a friend time how long it takes the ball to reach the maximum height. Before they start the experiment, the friend predicts: “If you throw the ball faster, the ball will reach the highest point in less time.”
Do you agree or disagree with this statement? Why or why not?

If you disagree, how would you correct it?

2. No equations necessary

The Attempt at a Solution


I predicted that it would not reach the highest point in less time because gravity would be the only force acting on the ball once the ball leaves his hand. Help??
 
Last edited by a moderator:
Physics news on Phys.org
Emily Falk said:
1. When throwing a ball, a student has a friend time how long it takes the ball to reach the maximum height. Before they start the experiment, the friend predicts: “If you throw the ball faster, the ball will reach the highest point in less time.”
Do you agree or disagree with this statement? Why or why not?

If you disagree, how would you correct it?


2. No equations necessary

3. I predicted that it would not reach the highest point in less time because gravity would be the only force acting on the ball once the ball leaves his hand. Help??

Do you think if you threw it fast enough, then it wouldn't come down at all?
 
PeroK said:
Do you think if you threw it fast enough, then it wouldn't come down at all?
Obviously I do not believe that if you look at my predicted answer.
 
Emily Falk said:
Obviously I do not believe that if you look at my predicted answer.

Why is gravity being the only force important? I don't see any logic in your answer.

What is the relationship between initial speed and time to reach the highest point?
 
Emily Falk said:
Obviously I do not believe that if you look at my predicted answer.
His question is important. You stated in your OP that no equations are necessary. I suggest that you should indeed use equations to figure this one out. What is the equation for the time to maximum height based on initial vertical velocity?
 
Thread 'Collision of a bullet on a rod-string system: query'
In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
Thread 'A cylinder connected to a hanged mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top