Physics, 01.12.2020 17:40 fields

PLEASE HELP ME ANSWER THOSE TWO QUESTIONS 1) If the coefficient of kinetic friction between the box and the ramp is 0.298, what is the force of friction that opposes Cory and Kathy’s pushing forces?

2) Cory is pushing to the right (up the ramp) with a force of 379 N, and Kathy is pushing to the right with a force of 357 N. What is the magnitude of the acceleration of the box?

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