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Projectile Apparatus/Falling Bodies Apparatus
(MC-1171) |
This apparatus demonstrates the independence of
horizontal and vertical velocities. It comprises a polished
wooden block 200 mm long, which is pivoted an L-section
metal launching bar 180 mm long. The bar is spring loaded
and provided with a trigger catch. A small hole near each
end of the bar serves to locate a 18 mm diameter steel ball.
As and when the catch is released one ball drops vertically
while the other is projected horizontally. The fact that the
vertical velocities of both balls are the same at any instant,
despite the fact that one has a large horizontal component,
is shown by the fact that both hit the floor at the same
instant.
The apparatus is supplied complete with a pair of steel
balls 18 mm diameter which is stored in a covered recess in
the wooden body |
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