science

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Force examples.svg (http://upload.wikimedia.org/wikipedia/commons/thumb/c/c3/Force_examples.svg/220px-Force_examples.svg.png)Force is measured in newtones , forces is like push or pull or  acceleration of an object is directly proportional to the net force acting on the object, is in the direction of the net force. 

the forces acting upon a boat the upthrust whitch give you a hint to why it is up . and that means the other force is acting down whitch is gravity . it is like

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