13 Questions
How should the change in momentum be represented in vector form when it is in the x-direction?
-5Δp
Which law states that the rate of change of momentum of an object is directly proportional to the applied external force?
Newton's Second Law
What does Conservation of Momentum state when the external force acting on an object is zero?
The object's velocity remains constant
In non-Newtonian physics, what concept is considered when an object is moving very fast?
Change in mass
When utilizing springs and shocks in cars to reduce force during sudden impacts, what concept is being applied?
Increasing time interval
What happens to an object's momentum when the external force applied on it changes?
Momentum increases
Why should the change in momentum be written as -5Δp in vector form when it is in the x-direction?
To show its direction and magnitude
In the SI units, what is the value of the change in momentum mentioned in the text?
-5√2 units
How does Newton's Second Law relate to the rate of change of momentum of an object?
It states a direct proportionality to applied force
What happens to an object's momentum if the time interval during an interaction increases, as mentioned in the text?
Momentum decreases
How do springs and shocks in cars utilize the concept mentioned in the text to reduce forces during sudden impacts?
By increasing time intervals
In non-Newtonian physics, what concept is considered regarding mass when objects are moving very fast?
Decreasing mass
How does conservation of momentum apply when the external force acting on an object is zero?
Momentum remains constant
Study Notes
- The change in momentum mentioned is in the x-direction and its value is -5√2 units.
- The change in momentum should be written as -5Δp in vector form because it is in the x-direction.
- The rate of change of momentum of an object is directly proportional to the applied external force acting on it.
- Newton's Second Law states that the rate of change of momentum of an object is directly proportional to the applied external force.
- If the external force applied on an object changes, its momentum will also change accordingly.
- In the SI units, the value in SI units is equal to 1 unit.
- In non-Newtonian physics, where the object is moving very fast, the concept of mass changing is considered.
- Conservation of momentum states that if the external force is zero, the rate of change of momentum will also be zero.
- In the case of a ball being caught, when the hand brings the ball backward, the time interval is forcibly increased, causing the force to decrease.
- The use of springs and shocks in cars is an example of utilizing the concept of increasing time interval to reduce force during sudden impacts.
Test your knowledge on momentum, external forces, Newton's Second Law, and conservation of momentum with this quiz. Explore concepts such as change in momentum, rate of change of momentum, and the impact of external forces on an object's momentum.
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