6 Questions
What is the condition for a body to be in equilibrium?
The sum of all external forces acting on it is zero
What is the term for the point where the weight of a body can be considered to act?
Center of gravity
What is the product of an object's mass and velocity?
Momentum
When is a body in stable equilibrium?
When its center of gravity is directly above its point of support
What is the point where the weight of a body can be considered to act also known as?
Balance point
What plays a crucial role in determining the momentum of a body?
Center of gravity
Study Notes
Center of Gravity
Equilibrium
- A body is in equilibrium when the sum of all external forces acting on it is zero
- The center of gravity is the point where the weight of the body can be considered to act
- In equilibrium, the center of gravity is directly above the point of support
- A body can be in stable, unstable, or neutral equilibrium depending on the position of its center of gravity
Momentum
- The center of gravity is also the point where the momentum of a body can be considered to act
- Momentum is the product of an object's mass and velocity
- A change in momentum occurs when an external force is applied to an object
- The center of gravity plays a crucial role in determining the momentum of a body
Balance Point
- The balance point is the point where the weight of a body can be considered to act
- The balance point is also known as the center of gravity
- A body is in balance when its center of gravity is directly above its base of support
- The balance point is important in determining the stability of a body
Center of Gravity
Equilibrium
- A body is in equilibrium when the net external force acting on it is zero
- The center of gravity is the point where the weight of the body can be considered to act
- In equilibrium, the center of gravity is vertically aligned with the point of support, ensuring balance
- Depending on the center of gravity's position, a body can be in stable, unstable, or neutral equilibrium
Momentum
- The center of gravity is the point where the momentum of a body can be considered to act
- Momentum is the product of an object's mass and velocity (p = mv)
- A change in momentum occurs when an external force is applied to an object, causing a change in its motion
- The center of gravity plays a crucial role in determining the momentum of a body, influencing its motion
Balance Point
- The balance point is the point where the weight of a body can be considered to act, also known as the center of gravity
- A body is in balance when its center of gravity is directly above its base of support, ensuring stability
- The balance point is critical in determining the stability of a body, as it affects its equilibrium state
Understand the concept of center of gravity, equilibrium, and momentum. Learn how to analyze the stability of objects in different states of equilibrium.
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