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Thread: A few questions related to gravitational force.

  1. #1
    Join Date
    Jun 2014
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    A few questions related to gravitational force.

    what are the answers to these questions?
    1. The mass of Jupiter is 39 times greater than that of the earth, but its gravitational field is only 3.9 times greater than that of the earth.Why?
    2. A man who can jump 1m high on the earth's surface can jump 6m high on the moon.Why?
    3. What is the direction of acceleration due to gravity?
    4. What is the change in the value of acceleration due to gravity as we go deeper down to the earth's surface and why?

  2. #2
    Join Date
    Jul 2005
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    Massachusetts, USA
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    These sound like homework questions. They are very basic textbook kinds of things.
    Forming opinions as we speak

  3. #3
    Join Date
    Dec 2004
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    14,782
    Yes, if these are homework questions, I wonder why you are
    wasting your time asking other people for answers when they
    are so easy to answer yourself. If you are considering only
    Newtonian physics, not relativity, the answer to your question
    number three would have been faster and easier for you to
    type than typing the question was.

    -- Jeff, in Minneapolis

  4. #4
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    Mar 2007
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    Falls Church, VA (near Washington, DC)
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    Quote Originally Posted by Abstract brain View Post
    what are the answers to these questions?
    1. The mass of Jupiter is 39 times greater than that of the earth, but its gravitational field is only 3.9 times greater than that of the earth.Why?
    2. A man who can jump 1m high on the earth's surface can jump 6m high on the moon.Why?
    3. What is the direction of acceleration due to gravity?
    4. What is the change in the value of acceleration due to gravity as we go deeper down to the earth's surface and why?
    My bold. Those numbers are not even close. You need to check your sources against other sources such as common textbooks, which can be found under Dewey Decimal numbers 520-523 in libraries. Online, Wikipedia can get you lots of good stuff.

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