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Posted by on Tuesday, May 14, 2013 at 10:49am.

Newtons 2nd law

The force of earths gravity is about 10 N downward. Whats the acceleration of a 15kg backpack if lifted with a 15N force??

  • Physics helpp - , Tuesday, May 14, 2013 at 12:26pm

    F-F(gr) = ma
    a= {F-F(gr)}/m =
    =(15-10)/15=0.33 m/s² (upward)

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