Projectile Problem: Find Theta | d=30, v=22, g=9.8, y0=2

  • Thread starter Thread starter rajesh.msen
  • Start date Start date
  • Tags Tags
    Projectile
AI Thread Summary
To solve the projectile problem with given parameters (d=30, v=22, g=9.8, y0=2), the key is to analyze the motion along the x- and y-axes independently. The user is attempting to find the launch angle theta, but is struggling with the equations. A suggested approach involves using the formula for projectile motion on uneven ground, which simplifies the analysis. It is important to break down the problem into horizontal and vertical components to find the correct angle. Understanding these principles will help in determining the required angle for the projectile.
rajesh.msen
Messages
6
Reaction score
0

Homework Statement



Hi to all guys i am not good in physics and trigonometric I tried to do a projectile system.My launch point is higher than target point.I know the velocity v, target_distance d, gravity g,Launch_height_y y0.I added a image that shows the equation.I tried my own but not solved the equation.Please some one help me

d = 30,v = 22 , g = 9.8 ,y0 = 2

I wants to find the theta(angle)

Homework Equations





The Attempt at a Solution

 

Attachments

  • c1da5860501561519415962ddda5e85e.png
    c1da5860501561519415962ddda5e85e.png
    1.2 KB · Views: 404
Last edited:
Physics news on Phys.org
Not sure how you got the equation but ut would be best to analyse along the independent x- and y-axes.One is accelerated and other is simple non-accelerated one.
 
Of course it is right. What I meant was analysis along x- and y-axes separately is much simpler(that's how they got the formula).
 
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...
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...
Back
Top