Which has a greater momentum a car at rest or a moving skateboard?
Terms in this set (11)
Which has a greater momentum, a heavy truck at rest or a moving skateboard? A moving skateboard has a greater momentum than a heavy truck at rest.
How can a huge ship have an enormous momentum when it moves relatively slowly?
How can a supertanker have a huge momentum when it moves relatively slowly? It has a huge momentum because its mass is huge. … A cannonball will have more momentum coming from the long cannon due to the force acting, for more time.
When two vehicles collide momentum is conserved?
An inelastic collisions occurs when two objects collide and do not bounce away from each other. Momentum is conserved, because the total momentum of both objects before and after the collision is the same. However, kinetic energy is not conserved.
In which is momentum conserved in elastic collision?
An elastic collision is a collision in which there is no net loss in kinetic energy in the system as a result of the collision. Both momentum and kinetic energy are conserved quantities in elastic collisions.
When two identical cars are moving in a race which one will have more momentum and why?
Two identical objects are moving in opposite directions at the same speed. The forward moving object will have the greatest momentum.
Why is it less damaging if you fall on a mat than if you fall on a solid floor?
Why is it less damaging if you fall on a mat than if you fall on a solid floor? The time to come to a stop will be longer on the mat. This means a longer time to stop and a smaller force. … This stretches the time, which results in less force.
When two objects collide what is always conserved?
In collisions between two isolated objects momentum is always conserved. Kinetic energy is only conserved in elastic collisions.
When you are struck by a moving object is it favorable?
To impart the greatest momentum to an object, you must: exert the greatest force over the longest time. When you are struck by a moving object, is it favorable that the object makes contact with you over a short time or over a long time? Long contact time decreases the magnitude of the average force and is favorable.
How do you know if momentum is conserved?
The momentum of an object will never change if it is left alone. If the ‘m’ value and the ‘v’ value remain the same, the momentum value will be constant. The momentum of an object, or set of objects (system), remains the same if it is left alone. Within such a system, momentum is said to be conserved.
Why is momentum always conserved?
The conservation of momentum is simply a statement of Newton’s third law of motion. During a collision the forces on the colliding bodies are always equal and opposite at each instant. These forces cannot be anything but equal and opposite at each instant during collision. … Therefore the momentum is always conserved.
Is momentum conserved in an explosion?
Whether it is a collision or an explosion, if it occurs in an isolated system, then each object involved encounters the same impulse to cause the same momentum change. The impulse and momentum change on each object are equal in magnitude and opposite in direction. Thus, the total system momentum is conserved.
How do you know if a collision is elastic?
If the kinetic energy is the same, then the collision is elastic. If the kinetic energy changes, then the collision is inelastic regardless of whether the objects stick together or not. In either case, for collisions with no external forces, momentum is conserved.
What is angular momentum conservation?
Any of the individual angular momenta can change as long as their sum remains constant. This law is analogous to linear momentum being conserved when the external force on a system is zero. As an example of conservation of angular momentum, Figure 11.14 shows an ice skater executing a spin.
Is angular momentum conserved in an inelastic collision?
Angular momentum is conserved for this inelastic collision because the surface is frictionless and the unbalanced external force at the nail exerts no torque.
Can a lighter object have more momentum than a heavier one how?
Question: Can A Lighter Object Have More Momentum Than A Heavier One? … No, Because Momentum Is Independent Of The Mass Of The Object.
What happens when two objects with the same momentum collide?
For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision. That is, the momentum lost by object 1 is equal to the momentum gained by object 2.
What happens if one of the cars collided with more force than the other one?
Forces between two colliding objects
It doesn’t matter if one car is heavier (more massive) than the other. The push force from one car will equal the push force from the other.
Is momentum conserved for colliding objects that are moving at angles?
order to see this you need to use vectors and vector addition. However, no matter what the angles are, the total (or net) momentum before the collision must equal the total (or net) momentum after.
Why is it important to follow through when trying to hit a homerun?
Why is it important to “follow through” when trying to hit a homerun? maximizes time that the bat is in contact with the ball. … increase amount of time it takes the person and therefore decreases force.
Does impulse equal momentum or a change in momentum?
The impulse experienced by the object equals the change in momentum of the object. In equation form, F • t = m • Δ v. In a collision, objects experience an impulse; the impulse causes and is equal to the change in momentum.