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Monkey-drop demo. Shooter-dropper vovo vovo.

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Presentation on theme: "Monkey-drop demo. Shooter-dropper vovo vovo."— Presentation transcript:

1 Monkey-drop demo

2 Shooter-dropper

3 vovo

4 vovo

5

6

7

8

9 vovo v=0 vovo

10 vovo

11 vovo

12 vovo

13 vovo

14 An ugly giant rolls a billiard ball with uniform velocity 30 m/s across the top of his desk. The ball rolls off the edge of the desk and lands on the floor 120 m from the edge of the desk. 120 m Question: How high is the table?

15 An ugly giant rolls a billiard ball with uniform velocity 30 m/s across the top of his desk. The ball rolls off the edge of the desk and lands on the floor 120 m from the edge of the desk. Consider the rabbit. 30 m/s

16 An ugly giant rolls a billiard ball with uniform velocity 30 m/s across the top of his desk. The ball rolls off the edge of the desk and lands on the floor 120 m from the edge of the desk. When will the rabbit be 120 m from the table? 30 m/s

17 An ugly giant rolls a billiard ball with uniform velocity 30 m/s across the top of his desk. The ball rolls off the edge of the desk and lands on the floor 120 m from the edge of the desk. When will the billiard ball hit the ground? 30 m/s

18 An ugly giant rolls a billiard ball with uniform velocity 30 m/s across the top of his desk. The ball rolls off the edge of the desk and lands on the floor 120 m from the edge of the desk. Now, consider a blue ball that is dropped as the billiard ball leaves the table. 0 m/s

19 An ugly giant rolls a billiard ball with uniform velocity 30 m/s across the top of his desk. The ball rolls off the edge of the desk and lands on the floor 120 m from the edge of the desk. When will the blue ball hit the ground? 0 m/s

20 An ugly giant rolls a billiard ball with uniform velocity 30 m/s across the top of his desk. The ball rolls off the edge of the desk and lands on the floor 120 m from the edge of the desk. How high is the table?

21 An ugly giant rolls a billiard ball with uniform velocity 30 m/s across the top of his desk. The ball rolls off the edge of the desk and lands on the floor 120 m from the edge of the desk. At what velocity will it hit the ground?

22 Sample problem: A diver springs upward from a board that is three meters above the water. At the instant she contacts the water her speed is 9 m/s and her body makes an angle of 75  with respect to the horizontal surface of the water. Determine her initial velocity, magnitude and direction.

23 +y +x x - party - part  x = a x = v xo = v xf =  t =  y = a y = v yo = v yf =  t = 3 m - 3 m 10 m/s/s - 10 m/s/s0 - 9 m/s sin 75  + 9 m/s cos 75  = m/s= m/s m/s v yf 2 = v yo a y  y (8.7) 2 = v yo (-10)(-3) v yo 2 = 15.7 v yo = 4 m/s Who cares? ?? + 4 m/s 9 m/s ? 75 


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