Problem 7: Suppose two children push horizontally, but in exactly opposite directions, on a third child in a sled. The first child exerts a force of 7/ N, the second a force of 93 N, kinetic friction is 4.5 N, and the mass of the third child plus sled is 25 kg. @theexpertta.com - tracking id: 9N69-4E-C3-45-84AD-30559. In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. Using a coordinate system where the second child is pushing in the positive direction, calculate the acceleration in m/s2. Numeric : A numeric value is expected and not an expression