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Home Q & A Board Science-Related Homework Help Physics
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Zug Zug
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10 years ago
A cannon on a train car fires a projectile with speed v0, relative to the train, from a barrel elevated at angle theta. The cannon fires just as the train, which had been cruising along a level track with speed vtrain, begins to accelerate with acceleration a.

Find an expression for the angle at which the projectile should be fired so that it lands as far as possible from the cannon. You can ignore the small height of the cannon above the track. The direction of the cannon is the same as that of the train's acceleration.

Express your answer in terms of the given quantities and appropriate constants using a and g.

I've been stuck on this problem for a while... Any step-by-step help would be much appreciated!
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#1
10 years ago
If the canon is fired just as the acceleration begins, then there's no effect on the projectile and the maximum range would be achieved at the same angle as if there were no acceleration, i.e., 45 degrees (ignoring air resistance, etc)
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o.avworoo.avworo
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Posts: 119
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10 years ago
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