Suppose two children push horizontally, but in exactly opposite directions, on a third child in a sled. The first child exerts a force of79N, the second a force of97N, kinetic friction is6.5N, and the mass of the third child plus sled is21kg.

(8%) Problem 7: Suppose two children push horizontally, but in exactly opposite directions, on a third child in a sled' The rst child exerts a force of 79 N, the second a force of 97 N, kinetic friction is 6.5 N, and the mass of the third child plus sled is 21 kg A Using a coordinate system where the second child is pushing in the positive direction, calculate the acceleration in 111/52. I Grade Summary Deductions Potential 100% a=| Submissions Attempts remaining: ( per attempt) _ dTailed View Degrees O Radians Submit Hint | | Hints: deduction per hint. Hints remaining: _ Feedback: deduction per feedback