Physics Homework Help on Momentum

Are you a university or school looking for an online tutoring partnership ? Talk to Us

What is Momentum?

It is defined as the product of mass and velocity of the particle. It is a vector quantity.
 


For an object having mass , and velocity .

 

Conservation of Momentum

In an isolated system, the total initial momentum of objects would be equal to the total final momentum of the objects.
 

 

Inelastic Collision

Under inelastic collision, the kinetic energy of the system is not conserved. Some energy is lost due to the collision. But, the momentum is conserved. 



For objects having mass , initial velocity , and final velocity

 

Complete Inelastic Collision

In a completely inelastic collision, one body is moving with velocity and mass , and another body is at rest, having mass . And, after the collision, both bodies move with velocity
 

 

Elastic Collision

In an isolated system, the total kinetic energy and the momentum of the object remain conserved under the elastic collision.

Here, one body is moving with velocity and mass , and another body is at rest, having mass . After the collision, the body moves with and respectively. 

So, we can use the momentum equation and kinetic energy equation to write some formulas. 
 

 
 



Momentum Questions & Answers – Sample

Question 1: In an inelastic collision, the mass of a car is 650 kg, is moving with an initial velocity of 20 m/s. It then collides with a truck of mass 9200 kg, which is moving in the same direction with a velocity of 12 m/s. The velocity of the car after the collision is 16 m/s. What would be the velocity of the truck after they collide.

 

Explanation: We have given mass and velocity, let us apply the formula under inelastic collision. 

So,

And, we have . Also,

Plug the values, 
 


Final answer: The velocity of the truck after collision would be .

 

Question 2: A block with a mass of 30 kg, which is initially at rest on a frictionless surface. The block got hit by a moving object having a mass of 70 kg, and a velocity of 15 m/s. Consider complete inelastic collision, and find the final velocity.

 

Explanation: We have given mass and velocity, let us apply the formula under complete inelastic collision
 


 

And, we have



Final answer: The final velocity of the system would be .

 

Question 3: Under the elastic collision, a body having a mass of 10 kg, with an initial velocity of 5 m/s, collides with a block of mass of 25 kg. Find the final velocity of the body.

 

Explanation: We will use the formula from the elastic collision.

We have given,

Plug the values.
 


Final answer: The velocity of the body after collision would be . The negative sign indicates the direction would be opposite.

 

Learn how to calculate momentum, solve equations and apply formulas with TutorEye

 

Have you ever wondered “what is momentum in Physics”?  Momentum is measured as a product of its mass and velocity. It can also be referred to as the quantity of motion of a moving body, usually connoted by the symbol ‘p’.  The definition of momentum can be summarized as such “p= m x v” where ‘m’ stands for mass and ‘v’ for velocity.


So if you need help in calculating momentum questions, solve equations and apply formulas, we are here to guide you. Our homework experts have extensive subject knowledge in the discipline gained by years of experience and helping students online.


Our solvers have advanced degrees in the subjectThey are here to assist you on how to find momentum and solve equations quickly. Students often need clarity on what momentum and impulse are and how they relate to force. This is where our homework solvers step in and provide insights on what step you are missing in the entire equation.


By getting stepwise guidance on key points and a draft for future reference, score ‘A+’ grades and make your mark.

 

Hire a Physics top solver today!

 

How to get Physics assignment help to calculate Momentum problems ?

To get 100% plagiarism-free assignment, follow these few simple steps:

 

Step 1: Fill up a quick order Physics homework help form

Step 2: Hire a top solver once you mutually agree on deadline and budget 

Step 3: On receiving your report, duly review the draft before releasing payment from escrow

 

We provide the highest quality and our delivered assignments undergo thorough checks before the draft is handed to the student.Our Money Refund policy is to ensure complete trust and satisfaction.

So get ready to explore the effect of linear momentum and the second law of motion. Take help from top solvers to understand conceptual problems, and complete problems and exercises in record time.

 

Get Physics Assignment help now!

We Are Different from Others!

Help with Momentum