A car weighing 10,000 newtons is parked in a garage. Which statement is true about the forces acting on the car?
Check out Newton's third law.
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To determine which statement is true about the forces acting on the car, let's analyze the situation.
When a car is parked, it means it is not moving, so we can assume it's at rest. According to Newton's First Law of Motion, an object at rest will remain at rest unless acted upon by external forces.
Here are the possible statements about the forces acting on the car in this scenario:
1. The only force acting on the car is its weight.
2. The weight of the car is balanced by an equal and opposite force from the ground.
3. The weight of the car is balanced by an equal and opposite force from the garage walls.
4. The car experiences no forces since it is parked.
Now, let's analyze each statement:
1. The only force acting on the car is its weight: This statement is true. The weight of the car, which is the force due to gravity acting on the car's mass, is the only force acting on it when parked.
2. The weight of the car is balanced by an equal and opposite force from the ground: This statement is partially true. The weight of the car is indeed balanced by an equal and opposite force from the ground due to the ground providing a force called the normal force. The normal force counters the weight of the car and prevents it from sinking into the ground.
3. The weight of the car is balanced by an equal and opposite force from the garage walls: This statement is false. The garage walls generally do not exert a force that balances the weight of a parked car. The walls usually provide support or containment rather than actively balancing forces.
4. The car experiences no forces since it is parked: This statement is not entirely accurate. While the car is parked and not experiencing any motion, it still experiences the force of gravity acting on it, resulting in its weight.
So, the correct statement is: The only force acting on the car is its weight.