Results 1 to 2 of 2

Math Help - forces again

  1. #1
    Senior Member furor celtica's Avatar
    Joined
    May 2009
    Posts
    271

    forces again

    ok this is just a little thing that needs clarification.

    a man of mass 75 kg travels upwards in a lift which is decelerating at 04ms^-2. make a sketch showing the forces acting on the man.

    so there are the normal reaction exerted by the lift floor, the weight, but does the deceleration of the lift come in anywhere?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor alexmahone's Avatar
    Joined
    Oct 2008
    Posts
    1,074
    Thanks
    7
    Quote Originally Posted by furor celtica View Post
    ok this is just a little thing that needs clarification.

    a man of mass 75 kg travels upwards in a lift which is decelerating at 04ms^-2. make a sketch showing the forces acting on the man.

    so there are the normal reaction exerted by the lift floor, the weight, but does the deceleration of the lift come in anywhere?
    The only forces acting on the man are the normal reaction N and his weight W. The fact that the lift is decelerating should tell you which of these forces is greater in magnitude.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. forces 2
    Posted in the Calculus Forum
    Replies: 2
    Last Post: February 20th 2010, 10:32 AM
  2. forces again
    Posted in the Math Topics Forum
    Replies: 1
    Last Post: July 2nd 2009, 06:42 AM
  3. Forces
    Posted in the Pre-Calculus Forum
    Replies: 1
    Last Post: March 11th 2009, 02:40 PM
  4. Forces
    Posted in the Advanced Applied Math Forum
    Replies: 1
    Last Post: December 23rd 2008, 07:15 AM
  5. forces
    Posted in the Trigonometry Forum
    Replies: 13
    Last Post: July 10th 2008, 07:46 AM

Search Tags


/mathhelpforum @mathhelpforum