Respuesta :
Answer:
All the three ball will have same speed
Explanation:
given,
three balls are thrown from tall building with same speed
Ball A is thrown in the horizontal direction
ball B starts out at 45° above the horizontal
ball C begins its flight at 45° below the horizontal
according to the law of conservation of energy
potential energy is converted into kinetic energy
[tex]\dfrac{1}{2}mv^2 = m g h[/tex]
[tex]v^2 = 2 g h[/tex]
[tex]v = \sqrt{2gh}[/tex]
from the expression above we can say that speed of the ball depend on the height of the ball.
hence, All the three ball will have same speed
The relationship between the speed and height of the three balls is that; each ball will have the same speed.
What is the relationship between speed and height?
We are given that;
Three balls are thrown from tall building with same speed
Ball A is thrown in the horizontal direction.
Ball B starts out at 45° above the horizontal.
Ball C begins its flight at 45° below the horizontal
From law of conservation of energy, we know that potential energy is equal to kinetic energy. Thus;
mgh = ¹/₂mv²
v = √2gh
We have seen the speed is directly proportional to the height and as such since the three balls have the same height, their speeds will be the same.
Read more about speed and height at; https://brainly.com/question/12446886
