# Is it correct to say that if no net impulse is exerted on a system then no change in the momentum of the system will occur

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## Is it correct to say that if no net impulse is exerted on a system then no change in the momentum of the system will occur

Newton’s second law of motion states that if no net force is exerted on a system, no acceleration is possible. Does it follow that no change in momentum can occur? SOLUTION: No net force on the system means no net impulse on the system and no net change in momentum.

## Which has a greater momentum − a heavy truck at rest or a moving skateboard?

Hence, the momentum of the moving skateboard is greater than the momentum of a heavy truck at rest.

## What are 2 ways to increase impulse?

Impulse can also be increased by increasing the time interval or by increasing the magnitude of change in momentum. The change in momentum can be increased by increasing the velocity of the body.

## Which baseball undergoes the greatest change in momentum at the same speed immediately after being caught and being thrown?

Answer and Explanation: Therefore, it is clear from all three cases that the change in momentum is greatest when the baseball is caught and thrown back. Impulse is always equal to change in momentum, so the greatest impulse is required when the baseball is caught and then thrown back.

## When an impulse is applied to the object what will always happen to the object?

An object which experiences a net impulse will definitely experience a momentum change. In a collision, the net impulse experienced by an object is equal to its momentum change. A force of 100 N acting for 0.1 seconds would provide an equivalent impulse as a force of 5 N acting for 2.0 seconds.

## When an object has a net force to the right does that mean it must accelerate to the right?

Direction of Net Force: A net force (or unbalanced force) causes an acceleration. The direction of the net force (or unbalanced force) acting upon an object is the same as the direction of the acceleration.

## Which has greater momentum a truck at rest or a bicycle in motion?

Taking the formula for momentum to be p=mv this is the mass multiplied by the velocity. Although the semi truck certainly has a larger mass, it is not in motion and therefore does not have any momentum. The bicycle however has both mass and velocity and therefore has the larger momentum of the pair.

## Which object has no momentum?

The momentum of any object that is at rest is 0. Objects at rest do not have momentum – they do not have any mass in motion. Both variables – mass and velocity – are important in comparing the momentum of two objects.

## Who has more momentum?

Both the mass and velocity of an object impact momentum. As a result, less massive objects can have more momentum than more massive objects (if the less massive object is moving faster), and slower objects can have more momentum than faster objects (if the slower object has more mass).

## What is the SI unit of momentum?

Momentum | |
---|---|

SI unit | kilogram meter per second (kg⋅m/s) |

Common symbols | p, p |

Other units | slug⋅ft/s |

Dimension | MLT^{−}^{1} |

## Is momentum is a vector?

The momentum of a body is a vector quantity, for it is the product of mass, a scalar, by velocity, a vector.

## What is the SI unit of impulse?

The SI unit of impulse is Newton-seconds (Ns) or kg m/s.

## Why a bowling ball has more momentum than a baseball moving at the same speed?

Mass measures the amount of matter in an object. The more massive an object is, the greater its momentum and the harder it is to stop. A bowling ball is, obviously, more massive than a baseball and, therefore, has higher momentum. Velocity is the rate of change in position over a period of time.

## Which ball will change more momentum?

(ii) The momentum of each ball will change by the same amount because the total momentum of the system (both balls) is conserved according to the law of conservation of momentum. However, the tennis ball will experience a larger change in momentum in proportion to its smaller mass, compared to the football.

## Which ball has more momentum and why?

A bowling ball has more mass than a golf ball. More mass means more momentum.

## Is it true if there is no change in momentum there would be no impulse?

Answer: Yes, because no acceleration means that no change occurs in velocity or in momentum (mass × velocity). Another line of reasoning is simply that no net force means there is no net impulse and thus no change in momentum.

## What happens to momentum when there is no net external force on the system?

Internal forces do not change the momentum of the system. In absence of net external force, the momentum will remain conserved.

F net Δ t F net Δ t is known as impulse and this equation is known as the impulse-momentum theorem. From the equation, we see that the impulse equals the average net external force multiplied by the time this force acts. It is equal to the change in momentum.

## Is the net impulse acting on a system equal to the change in momentum of the system?

The impulse-momentum theorem states that the impulse applied to an object is equal to the change in its momentum. The relationship between the change in momentum and impulse is given by F Δ t = Δ p , where F is the net average force, is the time interval, and is the change in momentum.