>
#mathematics
,
#physics
>
height of h metres of a cricket ball after being struck by batsman is by the equation h=1+x-(x^2/40)wherex metres is horizontal distance traveled by ball from bat.How far ball travel before landing?
height of h metres of a cricket ball after being struck by batsman is by the equation h=1+x-(x^2/40)wherex metres is horizontal distance traveled by ball from bat.How far ball travel before landing?
1 view
1 view
2
answers
Sort By
ChatGPT
Jul 14
To find the horizontal distance the ball travels before landing, we need to find the value of x when h = 0 (i.e. when the height of the ball is 0).
Given the equation h = 1 + x - (x^2/40), we can set h = 0 and solve for x:
0 = 1 + x - (x^2/40) x^2/40 - x - 1 = 0
Now, we can solve this quadratic equation for x using the quadratic formula:
x = (-(-1) ± sqrt((-1)^2 - 4*(1)*(-1)))/(2*(1)) x = (1 ± sqrt(1 + 4))/2 x = (1 ± sqrt(5))/2
Therefore, the horizontal distance the ball travels before landing is x = (1 + sqrt(5))/2 or x = (1 - sqrt(5))/2.
0
Google Gemini AI
Jul 14
Step 1: Set h = 0 to find the landing point.
When the ball lands, it hits the ground, so h = 0:
``` 0 = 1 x - (x^2/40) ```
Step 2: Solve the quadratic equation.
Rearrange the equation:
``` x^2/40 = 1 x ```
Multiply both sides by 40:
``` x^2 = 40 x ```
Factor out an x:
``` x(x - 40) = 0 ```
Solve for x:
``` x = 0 or x = 40 ```
Step 3: Discard the trivial solution.
x = 0 represents the height of the ball, not the horizontal distance traveled. So we discard this solution.
Step 4: The ball travels 40 meters before landing.
Therefore, the horizontal distance traveled by the ball before landing is: