In an action movie, a helicopter with the heroes on board is seen escaping from an underground bunker inside a volcano. The Volcano chimney is 605m tall. The helicopter is moving up with a constant acceleration of 10m/s^2. the villain realized of this and shoots the helicopter with a cannon. If it took the villain 10s to prepare the cannon and shoot, What is the minimum speed the cannon ball has to have to hit the helicopter?

what is the minimum speed the cannon ball has to have to hit the helicopter?

Assuming the cannon ball is shot at exactly this minimum speed, what is the cannon ball speed when it reaches the helicopter?

The pilot of the helicopter manages to maneuver it safe from the cannon ball. As you expect the cannonball will reach a maxium altitude and fall back down. How long will it take for the ball to return to the bunker?

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Homework RULES... do it first before you ask for help... we don't hand you answers. And I don't see any work done.

Smoothy is correct. Please show us you have tried to work this out.

Please post it only once. Multiple postings on other boards will be removed.

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Originally Posted by Wondergirl

Smoothy is correct. Please show us you have tried to work this out.

Please post it only once. Multiple postings on other boards will be removed.

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Yep and this is the fourth one so far... one had a lot of rude comments they made... that got deleted as a result. Apparently they have a problem with the rules here, and anywhere. I doubt they wll be back.. apparently their test is over...

THey are fond of the not helpful button too... they like doing this... {"why": "no help", "source": "Common Sense"}

Something they also seem to lack... that thread has since been deleted.