Question

A boy is pushing a heavy table across the room, but the table does not move. What is the direction of the static force acting on the table? *
a If the boy pushes the table to the right, static friction pushes upward
b If the boy pushes the table to the left, static friction pushes to the left.
c If the boy pushes the table to the right, static friction pushes to the left
d If the boy pushes the table to the right, static friction pushes to the right

Answer 1

Answer:

I guess it will be option d

Answer 2

(c) is the correct answer.

If the boy pushes the table to the right, static friction pushes to the left this happens because:

1. Static friction is a type of friction that is present between two objects which are not in motion. In this case, the table and the floor.
2. The static friction of these objects resists a change in motion, the object will not move forward until and unless the force of static friction is overcome.
3. In order to achieve this, static friction always acts in a direction opposite to the motion of the object. In this case, the boy pushes the table to the right, static friction pushes it to the left with the sole intention of preventing motion.