Standard Science Primary 6 Interactions

Siti tried to push a heavy box across a carpeted floor but it did not move. Which of the following explains why the box remained stationary?

A The frictional force between the box and the floor was greater than or equal to the pushing force.
B There was no force acting on the box.
C The box had too much kinetic energy.
D The pushing force was equal to the gravitational force.
Show Worked Solution

Worked Solution

Step 1: For an object to start moving, the applied force must overcome the opposing frictional force. Step [2-9]: If the box does not move, it means the friction is balancing or exceeding the push. Step [2-9]: Therefore, the frictional force was greater than or equal to the pushing force.

Correct answer: The frictional force between the box and the floor was greater than or equal to the pushing force.

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