The resultant force while pushing the car would be 20 N.
What is Newton's second law?
Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.
As given in the problem Mary and Carl's car broke down so they are pushing the car. Mary is pushing the car at 9N and Carl is pushing the car at 11N.
As both Mary and Carl apply the force in the same direction while pushing the broke car
Resultant force= 9 N + 11 N
= 20 N
Thus, the resultant force comes out to be 20N.
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The question seems incomplete, the complete question is,
Mary and Carl's car broke down so they are pushing the car. Mary is pushing the car at 9N and Carl is pushing the car at 11N. Find out the resultant force while pushing the car
