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9th Class Science Sample Paper Sample Paper - 1 Term - 1

  • question_answer
    If a ball is dropped from the top of a tower 80 m high, what is its velocity when it has covered 20 m? What would be its velocity when it hits the ground?   (Take)  

    Answer:

    Case Using the formulaWe have,                        Case Using the formula We have,                  


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