Calculate Golf Ball Velocity Components: x & y

AI Thread Summary
To calculate the velocity components of a golf ball hit at a 35-degree angle with an initial velocity of 86.4 m/s, the horizontal (x) and vertical (y) components can be derived using trigonometric functions. The y-component is approximately 49.6 m/s, while the x-component is around 70.8 m/s. These values were confirmed as correct by other participants in the discussion. The use of sine and cosine functions is appropriate for this type of problem. Accurate calculations are essential for understanding projectile motion in golf.
DarkTangent
Messages
3
Reaction score
0
A golf ball leaves an 8 iron at an angle of 35.0 degrees at a velocity of 86.4 m/s. Determine the horizontal [x] and vertical [y] components of the velocity.


There really were no equations for this, I attempted to use my protractor and ruler for this problem and ended up with a triangle. I used sin and cos to find my components, but I'm not so certain.



I got 49.6 m/s for the y-component and 70.8 m/s for the x-component. Any idea if those are right?
 
Physics news on Phys.org
Yes, those are right. (approximately, of course)
 
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 '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 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