Sebastian has drawn a free-body diagram for a ladder of mass m leaning against a frictionless wall. His diagram is shown below. What is his error?
A) is in the wrong direction.
B) should be directed upwards, not down.
C) should be perpendicular to the wall, not parallel to it.
D) should be down into the floor for to have the given direction.
E) is correct, but there should also be a force perpendicular to the wall.

Question

Sebastian has drawn a free-body diagram for a ladder of mass m leaning against a frictionless wall. His diagram is shown below. What is his error? 
A) is in the wrong direction. 
B) should be directed upwards, not down. 
C) should be perpendicular to the wall, not parallel to it. 
D) should be down into the floor for to have the given direction. 
E) is correct, but there should also be a force perpendicular to the wall.

Quizplus · Accepted Answer

The Answer of Sebastian has drawn a free-body diagram for a ladder of mass m leaning against a frictionless wall. His diagram is shown below. What is his error? 
A) is in the wrong direction. 
B) should be directed upwards, not down. 
C) should be perpendicular to the wall, not parallel to it. 
D) should be down into the floor for to have the given direction. 
E) is correct, but there should also be a force perpendicular to the wall.

Sebastian Has Drawn a Free-Body Diagram for a Ladder of Mass