How to find velocity if you have momentum and mass? (2024)

How to find velocity if you have momentum and mass?

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.

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How do you calculate velocity with mass and momentum?

So, you divide momentum by mass in order to find speed, or velocity using the momentum equation.

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How do you find initial velocity with momentum?

Finding initial velocity using conservation of momentum and energy [closed]
  1. Find Normal force N=(m1+m2)g.
  2. Find Ff=μN.
  3. Find A: Fnet=mA.
  4. Find speed: v2f=v2i+2ad.
  5. Find vi: m1vi=(m1+m2)v.
Dec 4, 2011

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What is the velocity of an object that has momentum?

In symbols, linear momentum is expressed as p = mv. Momentum is directly proportional to the object's mass and also its velocity. Thus the greater an object's mass or the greater its velocity, the greater its momentum. Momentum p is a vector having the same direction as the velocity v.

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How do you calculate 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.

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How do you find acceleration with momentum and mass?

Momentum Conservation and Newton's Laws

Recall that acceleration is rate of change of velocity, so we can rewrite the Second Law: force = mass x rate of change of velocity. Now, the momentum is mv, mass x velocity.

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How do you calculate velocity from mass and impulse?

By using momentum change: The formula to calculate impulse through momentum change is by calculating the mass of the body and the velocity. In this case, Impulse will be equal to the product of mass and velocity. So J= m*v. Here v will be calculated by subtracting the final velocity from the initial velocity.

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Can you find momentum without velocity?

Flexi Says: Momentum cannot be found without velocity because momentum is a product of mass and velocity. The formula for momentum is p = mv, where p is momentum, m is mass, and v is velocity. Without knowing the velocity, you cannot calculate momentum.

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How do I find initial velocity?

Initial Velocity Formula
  1. u = v – at. ...
  2. u2 = v2 – 2as. ...
  3. Where, ...
  4. Initial Velocity Solved Examples. ...
  5. Problem 1: Johny completes the bicycle ride with the final velocity of 10 ms-1 and acceleration 2 ms-2 within 3s. ...
  6. Answer: ...
  7. v (Final velocity) = u + at. ...
  8. ∴ (Initial velocity) u = 4ms-1

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Is velocity equal to momentum?

Momentum (P) is equal to mass (M) times velocity (v).

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Is momentum related to velocity?

Mass and velocity are both directly proportional to the momentum. 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.

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What is the formula for velocity in impulse and momentum?

Momentum and Impulse

The momentum, p , of a body of mass m which is moving with a velocity v is p=m×v=mv p = m × v = m v .

How to find velocity if you have momentum and mass? (2024)

What are the 3 formulas for velocity?

The three equations are,
  • v = u + at.
  • v² = u² + 2as.
  • s = ut + ½at²

What are the two formulas for velocity?

Equations of Motion
VariableEquation
Velocityv=u+at
Displacement with positive accelerations=ut+21at2
Displacement knowing initial and final velocitiess=21(u+v)t
Velocity squaredv2=u2+2as

How do you calculate speed momentum?

Solution: The momentum, p, of the object is simply the product of its mass and its velocity: p = mv.

What is the formula of change in momentum?

Step 1: Identify the mass of the object, , the initial velocity of the object, , and the final velocity of the object, . Step 2: Calculate the change in momentum, which is equal to the impulse, , using the formula Δ p = m ( v f − v i ) .

Is velocity positive or negative?

Velocity: The velocity of an object is the change in position (displacement) over a time interval. Velocity includes both speed and direction, thus velocity can be either positive or negative while speed can only be positive.

Why is momentum mass times 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. where m is the mass and v is the velocity. The equation illustrates that momentum is directly proportional to an object's mass and directly proportional to the object's velocity.

Does velocity mean speed?

Why is it incorrect to use the terms speed and velocity interchangeably? The reason is simple. Speed is the time rate at which an object is moving along a path, while velocity is the rate and direction of an object's movement.

How do you find momentum with mass and energy?

The equation that represents this concept is written: momentum = mass x velocity. And because physics uses the symbol 'p' to indicate quantity momentum, the equation can be rewritten as: p = m'xv; where,m' = mass and v=velocity.

What is the formula for mass speed and velocity?

p = m v . 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.

How is velocity directly proportional to mass?

Explanation: In terms of an equation, the momentum of an object is equal to the mass of the object times the velocity of the object. where m is the mass and v is the velocity. The equation illustrates that momentum is directly proportional to an object's mass and directly proportional to the object's velocity.

Is impulse equal to velocity?

The impulse experienced by an object is the force•time. The momentum change of an object is the mass•velocity change. The impulse equals the momentum change.

What is velocity if momentum is zero?

An object can have zero momentum when either its mass or its velocity is zero. Since negative mass doesn't exist, the velocity should be zero and thus, the object must be at rest.

Will an object with mass have momentum?

An object with mass will have momentum. An object which is moving at a constant speed has momentum. An object can be traveling eastward and slowing down; its momentum is westward. Momentum is a conserved quantity; the momentum of an object is never changed.

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