Physics what is the height of the platform
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Physics what is the height of the platform

[From: ] [author: ] [Date: 11-10-02] [Hit: ]
vertical motion,s = ut + 0.s = 0 + 0.5 *9.81 * 0.s = 4.......
A ball rolls horizontally with a speed of 6.4m/s off the edge of a tall platform.
If the ball lands 5.9 m from the point on the ground directly below the edge of the platform, what is the height of the platform?

-
horizontal motion,
time t = 5.9 / 6.4 = 0.9219s

vertical motion,
u=0 ;
s = ut + 0.5 gt^2
s = 0 + 0.5 *9.81 * 0.9219^2
s = 4.168m
answer
height of the platform
1
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