Recent content by coffeecake

  1. C

    Calculating Minimum Work for a Car on an Incline with Friction

    Homework Statement What is the minimum work needed to push a 1770 kg car 346 m up a 16.2 deg incline? Without friction, I got the the answer of 1670000 J. What is the minimum work needed if the coefficient of friction is 0.25? Homework EquationsThe Attempt at a Solution Ff=µFN FN = 17346...
  2. C

    Gravitational Force on an object

    Homework Statement If there are three objects (in a right triangle formation) with different masses (say x,y,z) (with y being the mass at the 90 degree angle) and different distances between x and y (distance A) and between y and z (distance B), how do you find the gravitational force between...