Rectilinear motion example

Rectilinear motion refers to the motion of an object along a straight line. This means that the object moves in a single dimension without any deviation or change in direction.

Example

The correct answer to the question is option 'b', which states that an apple falling from a tree and the motion of a car on a straight road are both examples of rectilinear motion. Let's examine these examples in detail:

1. Apple falling from a tree: When an apple falls from a tree, it follows a straight path towards the ground due to the force of gravity. As long as there are no external factors such as wind or air resistance, the apple will maintain a rectilinear motion until it reaches the ground.

2. Motion of a car on a straight road: When a car travels on a straight road without making any turns or changing directions, it exhibits rectilinear motion. The car moves in a single dimension along the road without any lateral or sideways movement.

Explanation

Rectilinear motion is characterized by the absence of any change in direction. Objects in rectilinear motion move in a straight line, either horizontally, vertically, or at an angle. In the case of the apple falling from a tree, the force of gravity acts vertically downwards, causing the apple to accelerate towards the ground in a straight line.

Similarly, when a car travels on a straight road, the engine's power propels it forward in a straight line. The car's wheels are aligned parallel to the direction of motion, ensuring that it moves without deviating from the intended path.

Conclusion

In summary, rectilinear motion refers to the motion of an object along a straight line without any change in direction. Examples of rectilinear motion include an apple falling from a tree and the motion of a car on a straight road. These examples demonstrate how objects can move in a single dimension without any lateral or sideways movement.