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DaniilM [7]
2 years ago
11

a que velocidad en km/h corrio usain bolt en el capeonato mundial de berlin en 2009 para batir el record mundial de los 100 m pl

anos en 9.58
Physics
1 answer:
loris [4]2 years ago
3 0

Answer:

v = 37.59 km/h

Explanation:

The question says, "how fast in km / h did usain bolt run at the berlin world championship in 2009 to break the world record for the 100m sprint in 9.58".

Distance, d = 100 m = 0.1 km

Time, t = 9.58 s = 0.00266 h

We need to find the speed of the Usain Bolt. We know that,

Speed = distance/time

So,

v=\dfrac{0.1}{0.00266}\\\\v=37.59\ km/h

So, the required speed is equal to 37.59 km/h.

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Evgesh-ka [11]

Responder:

Explicación:

Para que podamos calcular el tiempo que le tomará al esquiador permanecer en el aire, encontraremos el tiempo de vuelo como se muestra;

T = 2Usin theta / 2

theta = 90 grados

U = 25 m / s

T = 25sin90 / 2 (9,8)

T = 25 / 19,62

T = 1,27 segundos

Por lo tanto, los cielos usarán 1.27 segundos en el aire.

La distancia horizontal es el rango;

Rango R = U√2H / g

R = 25√2 (80) /9,8

R = 25√160 / 9,8

R = 25 * √16,326

R = 25 * 4.04

R = 101,02 m

Por tanto, la distancia horizontal recorrida por el esquiador es 101,02 m

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Uniform circular motion is the motion in which an object covers equal distance in equal interval of time in a circular path          and in non uniform motion object covers equal distance in unequal interval of time in a circular path
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Answer:

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Explanation:

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How much work does a student (m = 60 kg) do when he Climb a tower 80 m high?
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Answer:

W = 47040  J

Explanation:

Given that,

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W = 60 × 9.8 × 80

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So, the required work done is 47040  J.

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