11th Class Physics Laws Of Motion / गति के नियम Question Bank 11th CBSE Physics NLM, Friction, Circular Motion

  • question_answer
    Air is thrown on a sail attached to a boat from an electric fan placed on the boat Will the boat start moving?

    Answer:

                    No, when the fan pushes the sail by air, then air also pushes the fan in the opposite direction. Since fan is placed on the boat, the vector sum of linear moment of fan and boat is zero. The boat can move only under the force of reaction from some external agency.                


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