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user100 [1]
3 years ago
9

En el País Vasco los deportistas rurales levantan enormes piedras hasta su hombro. En un concurso , Jose levanta una piedra de 2

00kg a una altura de 1,80m ; y Txomin , más bajito , levanta otra , de 220 kg , a una altura de 1,60 m.... Quien ha ejercido más fuerza??
Physics
1 answer:
Mama L [17]3 years ago
5 0

Answer:

Txomin lifted the stone with greater mass. (Txomin levantó la roca con mayor fuerza).

Explanation:

The sportsman that lifts the stone with a greater mass needs a higher force (El deportista que levanta la piedra con mayor masa necesita una mayor fuerza):

José

F = (200\,kg)\cdot \left(9.807\,\frac{m}{s^{2}} \right)

F = 1961.4\,N

Txomin

F = (220\,kg)\cdot \left(9.807\,\frac{m}{s^{2}} \right)

F = 2157.54\,N

Txomin lifted the stone with greater mass. (Txomin levantó la roca con mayor fuerza).

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A ball is throw into the sky at 18m/s. How high can it reach?
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Answer:

The maximum height of the ball will be "16.53 m".

Explanation:

Given that,

V_{final} = 18 \ m/s

As we know,

The initial as well the final height on the ball will be same after it reaches it's maximum height.

then,

⇒ V_{final}=V_{initial}

where, V_{initial} = \sqrt{2gh}

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hence,

The max height of the ball will be:

⇒ 18=\sqrt{19.6h}

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