if an objective is massive truck parked along road side, it will probably not move.a student justifies this by answering two equal and opposite forces cancel each other. comment on this logic and explainwhy the truck does not move.
The logic provided by the student is partially correct but not entirely accurate. According to Newton's first law of motion, an object at rest tends to stay at rest unless acted upon by an external force. In this case, the forces acting on the truck are not necessarily canceling each other out, as the student suggests.
The truck does not move primarily due to the force of friction. Friction is the force that opposes the motion between two surfaces in contact, and it acts in the opposite direction to the applied force. In this scenario, the weight of the truck is the downward force exerted on the surface of the road, while the force of friction opposes the truck's movement.
When a massive truck is parked along the roadside, the force of friction between the tires and the road surface prevents the truck from moving. The weight of the truck pushes it downward onto the road, generating a force that is distributed across the tire's contact patch with the road. The friction between the tires and the road opposes the truck's attempts to move.
It is essential to consider that the force required to overcome the friction depends on two factors: the weight of the truck and the coefficient of friction between the tires and the road surface. If the force exerted to move the truck is not greater than the force of friction, the truck will not move. Therefore, in this case, the truck remains stationary because the force of friction is higher than any applied force trying to move the truck.
In summary, the truck does not move due to the force of friction between the tires and the road surface, which opposes the truck's attempts to move, rather than two equal and opposite forces canceling each other out.