Elston attached a spring scale to a box and pulls in across the floor. he then placed a book and pulls it in the same distance with the same effort. how does the force change after the book is placed in the box a. it will decrease
b. it could increase or decrease depending on the weight of the book.
c. it will increase
d. it could increase or decrease depending on the weight of the box.

Choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. choose a realistic problem for which these are the correct freebody diagrams. be sure that the answer that the problem requests is consistent with the diagrams shown. a 1.0 kg block is placed on top of a 2.0 kg block. a horizontal rope pulls the 2.0 kg block across a frictionless floor with a force of 21.0 n. the coefficient between the two blocks is 0.75. does the 1.0 kg block on top slide?