# What is the momentum of a 35 kilogram cart moving at a speed of?

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## What is the momentum of a 35 kilogram cart moving at a speed of?

Using the formula for momentum (p = mv), we multiply the mass (m) of the cart, which is 35 kilograms, by its velocity (v), which is 1.2 meters/second. This yields a momentum (p) of 42 kilogram·meters/second.

## What is the momentum of a cart before a collision?

The momentum of cart 1 before the collision is p1i. The momentum of cart 1 after the collision is p1f = p1i +Δp1.

## What is the total momentum of the carts after the collision?

During a collision, the total momentum of the system of both carts is conserved because the net force on the system is zero. If the momentum of one cart decreases, the momentum of the other cart increases by the same amount.

## What is the momentum of the system after the collision?

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 is the formula for momentum in kg?

In symbols, linear momentum p is defined to be p = mv, where m is the mass of the system and v is its velocity. The SI unit for momentum is kg · m/s. Newton’s second law of motion in terms of momentum states that the net external force equals the change in momentum of a system divided by the time over which it changes.

## How do you find velocity with momentum and kg?

Mass is measured in (kg), and velocity is measured in meters per second (m/s). The SI unit for momentum is kg • m/s. You can rearrange the equation to calculate velocity if you know momentum and mass, Velocity = Momentum/Mass, or to calculate mass if you know momentum and velocity, Mass = Momentum/Velocity.

## How to find velocity?

Determine the object’s original velocity by dividing the time it took for the object to travel a given distance by the total distance. In the equation V = d/t, V is the velocity, d is the distance, and t is the time.

## How do you calculate momentum?

Step 1: List the mass and velocity of the object. Step 2: Convert any values into SI units (kg, m, s). Step 3: Multiply the mass and velocity of the object together to get the momentum of the object.

## What is V prime in physics?

The ′ symbol indicates values after the collision or explosion. It’s called a prime and we pronounce v′1 as vee one prime. The cart with the extra mass will have velocity v′2 after the explosion. Note that v′1 and v′2 will have opposite signs and v′1 will be larger.

## What is the velocity of the two carts after the collision?

Now we consider a perfectly inelastic collision, in which the two carts stick together after collision. This means that the carts have a common final velocity, and m1v1i + m2v2i = (m1 + m2)vf. If one cart is initially at rest, say m2, then we have m1v1i = (m1 + m2)vf, and vf = m1v1i/(m1 + m2).

## What is the velocity of both carts after the collision?

For a perfectly elastic collision, the final velocities of the carts will each be 1/2 the velocity of the initial velocity of the moving cart. For a perfectly inelastic collision, the final velocity of the cart system will be 1/2 the initial velocity of the moving cart.

## How to find the velocity of the combined carts after collision?

After the collision, the combined (vector sums, use correct signs) of the two carts’ momentum must equal the incoming momentum. Since you have the mass and velocity of one of the two cars, and the mass of the other, you should be able to find the missing velocity: p = mrivri = mrfvrf + mbfvbf.

## Is momentum always conserved?

Momentum is always conserved because there is no external force acting on an isolated system (like the universe). Since momentum can never change, all of its components will always remain constant. Problems brought on by collisions should be resolved using the rule of conservation of momentum.

## 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 symbol for momentum?

Momentum | |
---|---|

Common symbols | p, p |

SI unit | kg⋅m/s |

Other units | slug⋅ft/s |

Conserved? | Yes |

## Which will have a larger momentum when moving at the same speed a 2 000 kg truck or a 1 000 kg sedan?

In physics terms, we say that the truck has greater momentum.

## How do you find momentum with speed?

p = m v . You can see from the equation that momentum is directly proportional to the object’s mass (m) and velocity (v). Therefore, the greater an object’s mass or the greater its velocity, the greater its momentum. A large, fast-moving object has greater momentum than a smaller, slower object.

## What is the momentum of a 100 kg object at rest?

Answer and Explanation: The momentum of a 100kg boulder at rest is 0 kg*m/s. If we use our momentum equation p=mv, we can plug in the values from the problem with mass being equal to 100kg and velocity being equal to 0m/s. Velocity is equal to 0m/s because the boulder is at rest, or not moving.

## What is the change in momentum when a car weighing 700 kg?

Answer. The momentum of a car of mass 700kg having initial velocity 100m/s and final velocity 200m/s is 70000kgm/s.