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professor190 [17]
3 years ago
13

A tiger leaps horizontally from a high rock with a speed of 4.5 m/s. She lands 50 m away

Physics
1 answer:
VladimirAG [237]3 years ago
7 0
A tigers lost one and yyyyyyyy was the first day in a while and they didn’t have a back up 4.5 50m
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Un movil de masa 12Kg sobre el cual estan actuando varias fuerzas F_1=48N, F_2=60N y F_3=30N Calcular la aceleracion con la cual
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Answer:

Lamentablemente el problema está incompleto, pues no sabemos la dirección en la que se aplican las fuerzas. Por ello, voy a resolver el problema asumiendo dos casos. (abajo se puede ver una imagen donde se describe cada caso)

1) Todas las fuerzas están en la misma dirección.

Entonces la fuerza neta será la suma de las 3 fuerzas, entonces:

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Y por la segunda ley de Newton sabemos que:

F = m*a

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Entonces la aceleración está dada por:

a = F/m = 138N/12kg = 11.5 m/s^2

2) Segundo caso, suponemos que F1 es opuesta a F2 y F3

En este caso, la fuerza neta será:

F = F2 + F3 - F1 = 60N + 30N - 48N = 42N

En este caso, la aceleración será:

a = 42N/12kg = 3.5 m/s^2

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