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You push really hard against a round rock, but you cannot make it roll. Which statement best explains why you cannot move the rock?
Gravity pulls the rock toward the center of Earth.
The forces between you and the rock are balanced.
The force of your push is greater than the opposing force.
There is no friction to help you move the object.

2 Answers

3 votes

Answer:

It's due to the forces that are known as balanced forces and it might also be because there is no friction

User Faruk Duric
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3 votes

Answer:

The forces between you and the rock are balanced.

Step-by-step explanation:

The force of your push against the rock and the opposing force of the rock pushing back on you are equal and opposite, meaning they balance each other out. This results in the rock not moving, because the net force on the rock is zero. This situation is referred to as static friction, which acts to prevent an object from moving when there is a force being applied to it. The force of static friction is always equal in magnitude but opposite in direction to the force being applied, until the force becomes large enough to overcome the static friction and cause the object to start moving.

User Runonthespot
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7.8k points