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A ball is placed in the funnel and the funnel cocked by compressing a spring. The track is raised at one end so that when it is released the cart accelerates down the track. At a certain point a bump below the track trips a lever, releasing the spring and ejecting the ball perpendicular to the track.
Where will the ball fall?
* (a) The ball will fall in front of the funnel.
* (b) The ball will fall behind the funnel.
* (c) The ball will fall IN the funnel.
[b:601ec2c994]You can drag the left slider to change the angle of the track. [/b:601ec2c994]
You can check out http://www.physics.umd.edu/lecdem/services/demos/demosc2/c2-27.htm for a real demonstration or click the above picture to watch the movie.Virtual Physics laboratory Original URL
Fu-Kwun Hwang, Dept. Of Physics, National Taiwan Normal University.