III.5. Self-assessment test - Movement and Rest

📝 Self-assessment test - Movement and Rest

1. What is the mechanical state of the locomotive driver compared to the locomotive. -1p

2. What can you say about the movement of a mobile that slows down and goes in a straight line? -1p

3. The movement data of the mobile 1 are entered in the below table.

a) Determine the positions of the mobile 2 for the times passed in the table, using its law of motion: x_M2 = 2 ∙ t + 20 -1p

b) Make the motion graph of the mobile M₁. Use as standards: 1 cm : 10 m și 1 cm : 10 s. -1,5p

c) Determine the position of the mobile M₁ at a time of 50 s, on the graph. -0,5p

d) Determine the average speed of the mobile M₁. -1,5p

4. A car within 6 s of the start reaches 6 m / s. What is its average acceleration? -1,5p

Ex officio -2p