> #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?
Anonymous
Jul 14

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?

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C
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
G
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:

```
x = 40 meters
```
0

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