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FISICA - VECTORES Y MRU

Authored by lapreagraria grupo

Physics

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FISICA - VECTORES Y MRU
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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Se muestran dos sistemas vectoriales I y II. El módulo del vector suma en forma respectiva será:

5; 5

0; 0

20; 15

10; 10

15; 10

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Determine la resultante del conjunto de vectores mostrado.

D

2D

3D

2C

C

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

El radio del círculo mide 2 cm. Si "0" es el centro de la circunferencia, el módulo de la resultante del sistema vectorial es, en cm:

4

 424\sqrt{2}  

8

 828\sqrt{2}  

 222\sqrt{2}  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

¿Cuál de las siguientes alternativas expresa un vector unitario?

i +

(3i+4j)5\frac{\left(3i+4j\right)}{5}

(2i−3j)5\frac{\left(2i-3j\right)}{5}

(i+j)2\frac{\left(i+j\right)}{2}

(i−2j)3\frac{\left(i-2j\right)}{\sqrt{3}}

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Dados los vectores: A = 4i + 8j; B = -2i - 5j. Determine el vector unitario en la dirección del vector resultante.

(2i+3j)13\frac{\left(2i+3j\right)}{\sqrt{13}}

(i+j)2\frac{\left(i+j\right)}{\sqrt{2}}

(i−j)2\frac{\left(i-j\right)}{\sqrt{2}}

(2i−j)13\frac{\left(2i-j\right)}{\sqrt{13}}

(2i+j)13\frac{\left(2i+j\right)}{\sqrt{13}}

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Dados los vectores A = 2i + 3j y B = 2i – 7j, determine la dirección del vector resultante.

45°

135°

145°

225°

315°

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Del gráfico mostrado, determine el vector unitario del vector resultante.

(−i+j)2\frac{\left(-i+j\right)}{\sqrt{2}}

(i+j)2\frac{\left(i+j\right)}{\sqrt{2}}

(i−j)2\frac{\left(i-j\right)}{\sqrt{2}}

(−2i+j)5\frac{\left(-2i+j\right)}{\sqrt{5}}

(2i−j)5\frac{\left(2i-j\right)}{\sqrt{5}}

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