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Un article trouvé pour ce sujet.
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Kicking a field goal |
2007-03-13 |
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san pose la question :
A football player attempts a field goal by kicking the football. The ball follows
the path modelled by the equation h= -4.9^2+10t+3, where h is the height of the
ball above the ground in metres, and t is the time since the ball was kicked
in seconds.
*the ball must clear the uprights for the field goal to count. The uprights are approximately
5 m high. How long does the ball stay above 5 m in height?
Penny Nom lui répond. |
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