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  1. M

    Grade 12 physics problem!

    1. Homework Statement 2 men with mass of 100kg each, are on a stationary cart with mass of 300 kg. The cart has no friction withthe tracks. The cart can only go north and south. 1st man starts runnin at speed of 5 m/s(reletive to cart) towards north and jumps off the cart. Otherman runs...
  2. M

    Grade 12 Physics question!

    I go it !!! I GOT IT!!!! Thank YOU DOC AL
  3. M

    Grade 12 Physics question!

    The conservation of momentum formula is : m1v1 + m2v2 = m1v1' + m2v2'
  4. M

    Grade 12 Physics question!

    okay the Ff = 1/4M*g = 1/4(1000)*9.8 = 250*9.8 = 2450 Newton is the force of friction
  5. M

    Grade 12 Physics question!

    I have no clue as to what you are speaking of.... the final speed of the plane is not Zero???? Then what is the number that needs to be subbed in as final velocity of the plane.????
  6. M

    Grade 12 Physics question!

    1. A 1000 kg plane is trying to make a forced landing on the deck of a large 2000 kg barge at rest on the surface of a calm sea. The only frictional force to consider is between plane's wheels and the deck, and this braking force is constant and equal to one-quarter of the plane's weight...
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