Define the momentum and impulse, Physics

Assignment Help:

Define the Momentum and Impulse.

Momentum, p, is a measure of a car's motion.

  p =  m  v

where p is momentum in kg-m/s, m is mass in kilograms and v is the velocity of the car in m/s. If you have a VW Bug going 50 kph and a semi going at the same speed, which has more momentum? The semi does, of course: the more mass, the more momentum. What about a semi moving at 25 kph and one moving at 50 kph? The semi moving at 50 kph has more momentum. More speed also means more momentum.

Another way to express Newton's Second Law is:

  F = m a

F = m Δv/Δt

F Δ t = m Δ v

where F is the force vector (in Newtons), Δt is the time (in seconds) that the constant force is pushing, m is the mass (in kilograms) of the ball, and Δv is the change in the velocity vector (in m/s). This can also be written

F Δ t = Δ p

where F Δt is the impulse in N-s, and Δp is the change in momentum in kg-m/s.


Related Discussions:- Define the momentum and impulse

Work power energy, A block of mass 2 kg is pulled up on a smooth incline ma...

A block of mass 2 kg is pulled up on a smooth incline making angle 30 degrees with horizontal . if block moves with an acceleration of 1 m/s2 , find a) Power delivered by the pull

Dynamics of circular motion:force on the particle, FORCE ON THE PARTICLE: F...

FORCE ON THE PARTICLE: For a mass m to have acceleration, a force given by F = ma is always required. In uniform circular motion, acceleration is of value v2/t and is directed tend

Vector Quantities: Importance and Application, What is the importance of ve...

What is the importance of vector quantities in real life? Cite some applications.

What is the dimentional formula of surface tension?, Surface tension is a ...

Surface tension is a contractive tendency of the surface of a liquid that permits it to resist an external force. It is revealed, for instance, in the floating of some objects on t

Why should the material used for making permanent magnets, Why should the m...

Why should the material used for making permanent magnets have high coercivity? What will be the values of input A and B for the Boolean expression? Why is frequency modulati

Define conduction, Figure denotes a rod whose ends are in thermal contact w...

Figure denotes a rod whose ends are in thermal contact with a hot reservoir at temperature T1 and a cold reservoir at temperature T2.  The ends of the rod are covered with insulati

Difference between linear model and nonlinear model, 1. What is the differe...

1. What is the difference between finite elements, finite difference, and finite volume? 2. What is stability, consistency, and convergence of a difference equation? 3. What

Explain parts of thermionic emitters, There are two parts of Thermionic emi...

There are two parts of Thermionic emitters:- A) Directly heated emitter (i) Cathode is directly heated by passing current. (ii) Thermionic current is less. (iii) Ener

Electronics, tell the fixed transistor bias and describe the design

tell the fixed transistor bias and describe the design

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd