How does velocity affect momentum?


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If you increase either mass or velocity, the momentum of the object increases proportionally. If you double the mass or velocity you double the momentum.

What is the momentum of the heavier car as compared to the lighter car?

Compared to the lighter car, the momentum of the heavier car is twice as much.

Why does colliding on the pile of hay stack cause less damage on the car than when colliding with the concrete wall?

Impulse Changes Momentum Examples: โ€“ When a car is out of control, it is better to hit a haystack than a concrete wall. Physics reason: Same impulse either way, but extension of hitting time reduces the force.

What is the total momentum before and after collision Answer A Answer B?

The total system momentum is the same before and after the collision. Thus, momentum is conserved and there is no net external impulse on the system.

What are the two factors affecting momentum?

Momentum depends upon the variables mass and velocity. In terms of an equation, the momentum of an object is equal to the mass of the object times the velocity of the object.

Which of the two vehicle has more momentum?

A moving truck has more momentum than a car moving at the same speed because the truck has more mass. A fast car can have more momentum than a slow truck. A truck at rest has no momentum at all. A truck rolling down a hill has more momentum than a roller skate with the same speed.

Why it is better to hit a haystack than hit a wall?

By hitting the haystack instead of the wall, you extend the contact timeโ€”the time during which your momentum is brought to zero. A longer contact time reduces the force and decreases the resulting deceleration. For example, if the time is extended 100 times, the force of impact is reduced 100 times.

What is called impulse?

1 : a force that starts a body into motion. 2 : the motion produced by a starting force. 3 : a strong sudden desire to do something She resisted the impulse to shout. 4 : nerve impulse.

Why does it hurt less when you fall on a softer surface support your answer based on physics concepts?

Why does it hurt less when you fall on a softer surface? The softer surface increases the duration of the impact, thereby reducing the effect of the force. The softer surface decreases the duration of the impact, thereby reducing the effect of the force.

What happens when 2 objects collide?

In a collision between two objects, both objects experience forces that are equal in magnitude and opposite in direction. Such forces often cause one object to speed up (gain momentum) and the other object to slow down (lose momentum).

What is the formula for total momentum?

Momentum Calculator p = mv.

Is momentum a scalar or a vector?

momentum, product of the mass of a particle and its velocity. Momentum is a vector quantity; i.e., it has both magnitude and direction.

What is the SI unit for momentum?

SI Unit of Momentum As mentioned above, the units of momentum will be the product of the units of mass and velocity. Mass is measured in kg and velocity in ms-1, therefore, the SI unit of momentum will be kgm/s(-1).

What are the two types of collision?

There are two types of collisions: Inelastic collisions: momentum is conserved, Elastic collisions: momentum is conserved and kinetic energy is conserved.

What is the unit of impulse?

The SI unit of impulse is the newton second (Nโ‹…s). The impulse applied to an object, often in the same direction, causes an equal vector shift in its linear momentum. The SI impulse unit is the second of the Newton (N.s), and the kilogramme metre per second (kg/m/s) is the dimensionally equivalent momentum unit.

Which is unit of force?

The SI unit of force is the newton, symbol N. The base units relevant to force are: The metre, unit of length โ€” symbol m. The kilogram, unit of mass โ€” symbol kg.

What is Ke formula?

Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

What are the unit of velocity?

Velocity is a vector expression of the displacement that an object or particle undergoes with respect to time . The standard unit of velocity magnitude (also known as speed ) is the meter per second (m/s). Alternatively, the centimeter per second (cm/s) can be used to express velocity magnitude.

What is a change in momentum called?

The change in momentum is called impulse. Impulse is given by the product of force and time. If the impulse is high then the change in momentum is also high. Impulse can be changed either by changing the force applied on the object or by changing the time duration that impulse acts.

On what factor does momentum depend?

Both mass and velocity Right Lines: Momentum, a quantity that’s a good measure of the motion of a body, depends on mass and on velocity. To work out which has the larger momentum you have to pay attention to both the mass and the velocity: โ†’p = m ร— โ†’v.

Which car is more difficult to stop?

The more massive the object (more inertia) the harder it is to start or stop. The Cadillac has more of a tendency to stay stationary (or continue moving), and resist a change in motion than a bicycle.

What does impulse depend on?

So, the impulse exerted on an object depends directly on both how much force is applied and for how long the force is applied. Impulse is the product of the force and the time. Impulse = (force)(time) = Ft.

What makes soft objects safer?

It is better to collide with a soft object than a hard object because the soft object makes the time of the impact increase, which decreases the force you feel although the impact is the same.

How do you calculate impulse time?

  1. ฮ”p = change in momentum = impulse = J.
  2. F = applied force.
  3. ฮ”t = time interval or elapsed time.

Is kinetic energy a vector?

Kinetic energy must always be either zero or a positive value. While velocity can have a positive or negative value, velocity squared is always positive. Kinetic energy is not a vector.

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