Calculating the Distance Dropped by a Baseball Thrown at 116 km/h

  • Thread starter Thread starter shenwei1988
  • Start date Start date
  • Tags Tags
    Baseball
AI Thread Summary
To calculate the distance a baseball drops when thrown horizontally at 116 km/h (32.22 m/s) over a distance of 18.4 m, the time taken for the ball to reach home plate is approximately 0.57 seconds. Using the gravitational acceleration of 9.81 m/s², the vertical drop can be calculated with the formula for distance under constant acceleration. The key point is to find the vertical displacement (\Deltay) during that time, which involves using the equation \Deltay = 0.5 * g * t². The discussion emphasizes the need to focus on both horizontal and vertical components to solve the problem effectively. Understanding these principles is crucial for accurately determining the drop distance of the baseball.
shenwei1988
Messages
23
Reaction score
0
a) A pitcher throws a baseball horizontally at 116 km/h toward home plate, which is 18.4 m away. How far will the ball drop due to gravity by the time it reaches home plate?

g=9.81m/s^2
v=116km/h


i tried to solve this question, but i don't know where to get the high.
116km/h=32.22m/s
18.4/32.22=0.57s
`````

please help me, thank you! i am so confuse with the question it actually ask.
 
Physics news on Phys.org
Basically, the question that it is asking is that it wants you to find how far the ball dropped since it left the pitcher's hand. What I did was that i wrote out all my horizontal givens and my vertical givens and I just solved for \Deltay after I got all the other information.
 
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