Question 1.Find the magnitude and direction of the resultant vector obtained by addinga. displacements of 30 m E and 20 m N;b. velocities of 16 m s–1 W and 30 m s–1 S;c. forces of 20 N NW and 10 N N
Question
Question 1.Find the magnitude and direction of the resultant vector obtained by addinga. displacements of 30 m E and 20 m N;b. velocities of 16 m s–1 W and 30 m s–1 S;c. forces of 20 N NW and 10 N N
Solution
Claro, vamos a resolver cada parte del problema paso a paso.
Parte a: Desplazamientos de 30 m E y 20 m N
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Representamos los desplazamientos en un sistema de coordenadas:
- 30 m hacia el Este (E) se representa como
- 20 m hacia el Norte (N) se representa como
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Sumamos los vectores:
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Calculamos la magnitud del vector resultante:
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Determinamos la dirección del vector resultante usando la tangente del ángulo:
Parte b: Velocidades de 16 m s–1 O y 30 m s–1 S
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Representamos las velocidades en un sistema de coordenadas:
- 16 m/s hacia el Oeste (W) se representa como
- 30 m/s hacia el Sur (S) se representa como
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Sumamos los vectores:
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Calculamos la magnitud del vector resultante:
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Determinamos la dirección del vector resultante usando la tangente del ángulo:
Parte c: Fuerzas de 20 N NO y 10 N N
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Descomponemos las fuerzas en sus componentes:
- 20 N hacia el Noroeste (NW) tiene componentes
- 10 N hacia el Norte (N) se representa como
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Sumamos los vectores:
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Calculamos la magnitud del vector resultante:
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Determinamos la dirección del vector resultante usando la tangente del ángulo:
Así, hemos encontrado la magnitud y dirección de los vectores resultantes para cada caso.
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