A student holds a physics book in her hands motionless 1.2 meter above the floor as shown to the left. The forces from h
Posted: Wed Jun 08, 2022 7:33 pm
A student holds a physics book in her hands motionless 1.2 meter
above the floor as shown to the left. The forces from her hands on
the front and the back of the book are perpendicular to the book's
cover and are horizontal. The mass of the book is 33 kg. The
coefficient of static friction betweent the covers and her hands is
μs=0.49 and the coefficient of kinetic friction is
μk=0.34.
1)
What is the net force on the book in the x (horizontal)
direction?
ΣFx =
N
2)
What is the net force on the book in the y (vertical)
direction?
ΣFy =
N
3)
What is minimum normal force that the student can apply from
each hand to the cover of the book to keep it from slipping through
her hands?
Fmin =
N
4)
Which of the following is an action-reaction force pair in this
situation?
Force-pair =
above the floor as shown to the left. The forces from her hands on
the front and the back of the book are perpendicular to the book's
cover and are horizontal. The mass of the book is 33 kg. The
coefficient of static friction betweent the covers and her hands is
μs=0.49 and the coefficient of kinetic friction is
μk=0.34.
1)
What is the net force on the book in the x (horizontal)
direction?
ΣFx =
N
2)
What is the net force on the book in the y (vertical)
direction?
ΣFy =
N
3)
What is minimum normal force that the student can apply from
each hand to the cover of the book to keep it from slipping through
her hands?
Fmin =
N
4)
Which of the following is an action-reaction force pair in this
situation?
Force-pair =