If the average velocity from the end of 5S to the end of 9s is 2.1mgs, Such as the title

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• 1. For a particle moving in a straight line with uniform velocity, the initial velocity is 0.5m/s, and the displacement in the 9th second is 4m more than that in the 5th second? (2) What is the displacement of the particle passing through in 9s?
• 2. The initial velocity of a particle moving in a straight line with uniform velocity is 0.5m/s, which is higher in the 9th s than in the 5th s
• 3. If the average velocity of the particle moving from the end of 5S to the end of 19S is 3.6m/s, the displacement of the particle in the first 8s can be calculated by the proportional method
• 4. For a particle moving in a straight line with uniform velocity, the initial velocity is 0.5m/s, and the displacement in the 9th second is 4m more than that in the 5th second? (2) What is the displacement of the particle passing through in 9s?
• 5. The average velocity in the first second is 1.2 m / s, and the average velocity in the second second is 1 m / s. The acceleration and total displacement of an object are calculated
• 6. When an object moves in a straight line with uniform acceleration, its displacements in the third and sixth seconds are 2.4m and 3.6m respectively?
• 7. The displacement of an object in the third second and the sixth second is 2.4 m and 3.6 m respectively Find the initial velocity, acceleration and average velocity in the first 6 seconds It seems that we can't do it by formula!
• 8. When an object moves in a straight line with uniform acceleration, the initial velocity is 5 m / s, and the acceleration is 0.5 m / S2, the displacement of the object in 3 s is zero______ The displacement in 3S is______ ．
• 9. If the initial velocity V0 of an object is 2 m / s and the displacement it passes through in the third second is 4.5 m, then its acceleration is 0
• 10. For an object moving in a straight line with uniform acceleration, if the initial velocity V0 is 2.0 M / s, and the displacement it passes through in the third second is 4.5 m, then its acceleration is 0______ ．
• 11. When an object moves in a straight line with uniform acceleration, the displacement is 10 m in the third second and 14 m in the fifth second, Here is my process 1/2a+V0=10 1 1/2a+V0'=14 2 Here, V0 refers to the velocity at the end of the second second second, and V0 'refers to the velocity at the end of the fourth second 1-2 to get V0 '- V0 = 4 So a = 2m / S ^ 2 Then 1 / 2 × 2 + V0 = 10 So the initial velocity is 8m / s But the initial speed in the answer is 5m / s, which I don't understand. I hope you can analyze the problems in my process,
• 12. When an object moves in a straight line with uniform acceleration, the displacement is 10m in the fifth second and 20m in the seventh second,
• 13. The initial velocity of an object moving in a straight line with uniform velocity is 28m / s, and the displacement in the 6S is 4m less than that in the 5S If the initial velocity of an object moving in a straight line with uniform velocity is 28m / s, the displacement in the 6S is 4m less than that in the 5S, what is the acceleration of the object?
• 14. The initial velocity of the object moving in a straight line with uniform velocity is 12 m / s, and the displacement in the sixth second is 4 m more than that in the fifth The time taken for an object to move from point a of 14m to point B of 32m is 1s. Why is that right? Why do I calculate that there is only 14m displacement in one second
• 15. The initial velocity of an object moving in a straight line with uniform velocity is 12 m / s, and the displacement in the sixth second is 4 m more than that in the fifth second. When the object moves from point a of 14 m to point B of 32 m, it takes 1 s, right? Why?
• 16. The initial velocity is 0.5 meters per second. The displacement in the sixth second is 4 meters more than that in the fifth second. The acceleration and the displacement in the fifth second are calculated
• 17. When a car moves in a straight line with uniform deceleration, the initial velocity is 10m / s, and the acceleration is 1m / S2, the displacement in LS before the car stops is () A. 5.5 mB. 5 mC. l mD. 0.5 m
• 18. When an object moves in a straight line with uniform deceleration, the initial velocity is 10 m / s, and the acceleration is 1 m / S2, the average velocity of the object within 1 s before it stops moving is () A. 5.5m/sB. 5m/sC. 1m/sD. 0.5m/s
• 19. When the car runs at a uniform speed of 10m / s and gets an acceleration of 2m / S2 after braking to make a uniform deceleration movement, how many meters is the displacement within 8s after braking?
• 20. 1. For an object moving in a straight line with uniform acceleration, if the initial velocity is 2m / s and the displacement it passes through in the third second is 4, then its acceleration is?