I.8. Self-assessment test - Vectors. Vector composition.

📝 Self-assessment test - Vectors. Vector composition.

1. Represents a vector d = 20 m, in a horizontal direction, to the left, using as a standard 1 cm : 5 m. -1p

2. Represents the force of 600 N with which Johnny strikes with a hammer a nail in the wall, in a direction that makes an angle of 30° with the wall, using as standard 1 cm : 100 N. -1p

3. Two forces act on a body. We know: F₁ = 400 N, which acts horizontally, to the left and the resulting force, F = 200 N, in the horizontal direction, to the left. The standard is: 1 cm : 50 N. Graph the force F₂. -2p

4. Compose the following two vectors, which have the same application point: -2p

F₁ = 180 N, direction that makes an angle of 40° with the vertical, upwards

F₂ = 120 N, vertical direction upwards

Etalon: 1 cm : 30 N

5. A traveler goes 10 km North, then 60 km West, then 40 km South and finally 80 km East. The standard is: 1 cm : 10 km. Determine the resulting vector. -2p

Ex officio: -2p