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1. A train accelerates from rest with an acceleration of 4 m/s 2 for a time of 20 s. What is the train's speed at

1. A train accelerates from rest with an acceleration of 4 m/s2 for a time of 20 s. What is the train's speed at the end of 20 s?

2. A ball is thrown straight upward with a speed of +12 m/s. What is the ball's acceleration just after it is thrown?

3. A bus starting from a speed of +24 m/s slows to 6 m/s in a time of 3 s. What is the average acceleration of the bus?

4. What property does this describe? The length of movement from beginning to end, a vector quantity.

5. What is a scalar quantity?

6. How long will it take for a car to slow down from 22 m/s to 3 m/s if it decelerates at 2.4 m/s/s?

7. Acceleration describes a change in _____.

8. A ball is thrown straight upward with a speed of +12 m/s. How much time does it take for the ball to rise to its maximum height?

9. What kind of quantity is the distance?

10. What is a good statement for velocity?

11. A football player starts from rest 10 meters from the goal line and accelerates away from the goal line at 5 m/s2. How far from the goal line is the player after 4 s?

12. Describe acceleration.

13. What is a scalar measurement?

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