A 4.0 kg book is horizontally pulled by a string at constant speed along a horizontal table. The coefficient of kinetic friction is 0.35. What is the magnitude of the net force acting on the book?
A. 0 N.
B. 14 N.
C. 25 N.
D. 39 N.
Answer:A
A 4.0 kg book is horizontally pulled by a string at constant speed along a horizontal table. The coefficient of kinetic friction is 0.35. What is the magnitude of the net force acting on the book?
A. 0 N. B. 14 N. C. 25 N. D. 39 N.