calonuoha520 calonuoha520

31-10-2022
Physics

Answered

Heather pushes a book across the table with a force of 15 N from rest for a total of 5.0 s. Once she stops pushing, the box stops after 3.0s. What is the force of friction on the book?
A. Ff =3.2 N, right
B. Ff =5.2 N, left
C. Ff =9.4 N, left
D. Ff =15.9 N, right

Answer :

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