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: xM2 = 2 ∙ t + 20 -1p
b) Make the motion graph of the mobile M1. Use as standards: 1 cm : 10 m și 1 cm : 1 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