A particle is moving in a straight line with a constant velocity. What is its an
Practice Questions
Q1
A particle is moving in a straight line with a constant velocity. What is its angular momentum about a point that is not on the line of motion?
Zero
Constant
Increasing
Decreasing
Questions & Step-by-Step Solutions
A particle is moving in a straight line with a constant velocity. What is its angular momentum about a point that is not on the line of motion?
Step 1: Understand that angular momentum depends on the velocity of the particle and its distance from the point of interest.
Step 2: Recognize that the particle is moving in a straight line with a constant velocity.
Step 3: Identify the point that is not on the line of motion of the particle.
Step 4: Calculate the distance from the point to the line of motion of the particle. This distance remains constant.
Step 5: Since both the velocity of the particle and the distance from the point are constant, the angular momentum will also remain constant.
Step 6: Conclude that the angular momentum about the point is constant.
Angular Momentum – Angular momentum is the product of the linear momentum and the perpendicular distance from the point of rotation to the line of motion.
Constant Velocity – A particle moving with constant velocity means its speed and direction do not change over time.
Point of Reference – The point about which angular momentum is calculated can affect the value of angular momentum, especially if it is not on the line of motion.