The acceleration due to gravity on the moon is about one-sixth its value on earth. If a baseball reaches a height of 58 m when thrown upward by someone on the earth, what height would it reach when thrown in the same way on the surface of the moon?

Respuesta :

Answer:

It will reach 348 m.

Explanation:

The gravity acceleration on Earth is

[tex]g=9.81\frac{m}{s^{2}}[/tex]

And for the Moon we write :

[tex]g_{Moon}=\frac{g}{6}[/tex]

Being g the gravity acceleration on Earth

The speed equation on a vertical throw is the following :

[tex]V_{f} ^{2}=V_{0} ^{2}-2g(y-y_{0})[/tex]

Where [tex]V_{f}[/tex] is the final speed of the throw

[tex]V_{0}[/tex] is the initial speed of the throw

g is the acceleration (generally the gravity acceleration)

y is the height reached

And [tex]y_{0}[/tex] is the initial height

We define [tex]y_{0}=0m[/tex] putting the comparison plane on the Earth surface.

Applying the equation on Earth we have the following :

[tex]0=V_{0} ^{2}-2g(58m)[/tex]

Because the final speed is 0 when the object is in it maximum height

and 58 m is the difference between the maximum height and [tex]y_{0}[/tex]

Then ⇒

[tex]V_{0}^{2}=2g(58m)[/tex]

Finally,applying the equation on the Moon :

[tex]0=V_{0}^{2}-2\frac{g}{6}(y-y_{0})[/tex]

We use the expression of [tex]V_{0} ^{2}[/tex] that we calculated :

[tex]0=2g(58m)-2\frac{g}{6}(y-y_{0})\\2\frac{g}{6}(y-y_{0})=2g(58m)[/tex]

[tex]\frac{(y-y_{0})}{6}=58m[/tex]

[tex]y-y_{0}=348m[/tex]

Then 348 m would be the height variation between [tex]y_{0}[/tex] and y

If we define [tex]y_{0}=0m[/tex] putting the comparison plane on the Moon surface.

The height reached will be 348 m.