- #1

SilentBlade91

- 35

- 0

## Homework Statement

Place a book flat on a table and press down on it with your hand. Now suppose the hand-to-book and table-to-book coefficients of kinetic friction are 0.48 and 0.40 respectively. The book's mass is 0.80 kg and your downward push on it is 10.90 N. How much horizontal force is needed to keep the book moving at a constant speed if the hand is stationary with respect to the book?

## Homework Equations

F=ma I am guessing

Possibly the frictional force equation

## The Attempt at a Solution

I tried using the frictional force equation and doing (.48)(10.90N)=5.232N thinking that would be the force you would need but I was wrong