Elston attaches a spring scale to a box and pulls it across the floor. He then places a book in the box and pulls it in the same distance with the same effort. How does the force change after the book is placed in the box?

Question

Responses

it could increase or decrease depending on the weight of the book
it could increase or decrease depending on the weight of the book

it could increase or decrease depending on the weight of the box
it could increase or decrease depending on the weight of the box

it will decrease
it will decrease

it will increase

Answer 1

it will increase