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  3. a cannon on a train car fires a projectile to the

A cannon on a train car fires a projectile to the right with speed v0, relative...

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Physics

A cannon on a train car fires a projectile to the right withspeed v0, relative to the train, from a barrel elevated at angle θ.The cannon fires just as the train, which had been cruising to theright along a level track with speed vtrain, begins to acceleratewith acceleration a, which can be either positive (speeding up) ornegative (slowing down). Find an expression for the angle at whichthe projectile should be fired so that it lands as far as possiblefrom the cannon. You can ignore the small height of the cannonabove the track.

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