Solving Range & Height of Spring Gun Ball - 45° Angle

  • Thread starter Thread starter physics dud
  • Start date Start date
  • Tags Tags
    Lost
AI Thread Summary
The discussion centers on solving a physics problem involving a spring gun that launches a ball at a 45-degree angle, achieving a horizontal range of 32 feet. The main challenges include determining the maximum height of the ball and finding two angles for a reduced range of 20 feet. Participants express confusion over the lack of necessary information, particularly the time frame for the projectile's motion. Suggestions include visualizing the problem with a diagram and clearly listing known and unknown variables to facilitate problem-solving. Overall, the conversation emphasizes the importance of organizing information to tackle complex physics questions effectively.
physics dud
Messages
2
Reaction score
0
I am not sure I can solve this, I am confused that I do not have the information I need. I am lost and my prof is of little help.

A spring gun projects a ball at an angle of 45 degrees above the horizontal. The ball has a horizontal range of 32 feet. What is the maximum height to which the ball rises, and for the same initial velocity, what are the two angles for which the range is 20 feet.

Dont I need at least a time frame to solve this?

The best part is, the other two problems are even more vague to me.
 
Physics news on Phys.org
Draw a picture of what is going on in the problem, then write down what you know and show in words what you've done. That way if you made a mistake someone can help you. It may also be helpful to write down what you know and write down what you don't know, then you know what to solve for
 
Xo = 0
Yo = 0
Ax = 0
Ay = -9.8m/s
Angle Theta = 45
x = 32 feet ( 9.6 m, 960 centimeters)
 

Thread 'Errors and significant figures'

I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
View full post »
Thread 'A cylinder connected to a hanging mass'

Thread 'A cylinder connected to a hanging 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...
View full post »

Similar threads

A ball is thrown w/initial speed vi at an angle 𝜃i with the horizontal
Replies
5
Views
1K
Needing some help about time of flight of a launched ball/horiz range
Replies
6
Views
3K
What is the Maximum Height Achieved by a Soccer Ball Kicked at a 45° Angle?
Replies
11
Views
2K
A Projectile Launcher (baseball hit at a 45 degree angle to the horizontal)
Replies
15
Views
5K
Horizontal Range Homework: 45° & 30° Angles
Replies
3
Views
2K
AP Physics C Momentum Problem: A dart launched horizonally by a spring gun
Replies
22
Views
4K
Optimal Angle and Horizontal Range of a Bottle Rocket Projectile
Replies
1
Views
3K
Find the Height of a Building by dropping a ball from the top
Replies
7
Views
3K
Question about springs and rotational/translational energy
Replies
4
Views
1K
Can Work-Energy Formula Be Used to Solve Ball-Spring Collision?
Replies
1
Views
1K

Hot Threads

Recent Insights

Back
Top