Asked by Nolan
                A 50-kg penguin stands on ice. A helium balloon is attached to the penguin by means of a harness and pulls upward with a force of 90 N. What is the normal force of the ice on the penguin?
            
            
        Answers
                    Answered by
            drwls
            
    Fnormal = M*g - 90 N
where M is the mass of the penguin.
    
where M is the mass of the penguin.
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