9th Class Science Sample Paper Science Olympiad Model Test Paper-21

  • question_answer
    A 1 kg ball is thrown up with a speed of\[9.9\text{ }m\text{/}s\]. Calculate the work done by its weight in one second.

    A) \[-\text{ }49\text{ }J\]

    B) \[-\text{ }47\text{ }J\]

    C) \[-\text{ }41\text{ }J\]

    D) \[-\text{ }39\text{ }J\]

    E) None of these

    Correct Answer: A

You need to login to perform this action.
You will be redirected in 3 sec spinner