Friction, Physics

Assignment Help:

A thin rod of length 1 m is fixed in a vertical position inside a train, which is moving horizontally with

constant acceleration 4 m/s2. A bead can slide on the rod, and friction coefficient between them is 1/2.

If the bead is released from rest at the top of the rod, find the time when it will reach at the bottom.

Solution) If mass of bead is m;

mg-µN=ma

Now, N=pseudo force due to acceleration of train, which is equal to 4m Newton.

 =>   mg-µ(4m)=ma

=>  g-4µ=a

=>  a=8ms-2

 

Using, second equation of motion:

1=0.5(8)t2

T=0.5sec

 


Related Discussions:- Friction

Verify gauss theorem in electrostatics, Verify Gauss' theorem in electrosta...

Verify Gauss' theorem in electrostatics. Apply it to search the electric field strength at a point near a long straight conductor carrying electric charge.

What is superconductivity, Q. What is superconductivity? The capability...

Q. What is superconductivity? The capability of certain metals their compounds and alloys to conduct electricity with zero resistance at very low temperatures are called superc

Valve & digital electronics: thermionic emission, (i) The procedure of ejec...

(i) The procedure of ejection of electrons from a metal surface by the application of heat is known as thermionic emission and emitted electrons are known as thermions and current

How the temperature of a hot object is lost, The topic for the project is N...

The topic for the project is Newton's Law of Cooling, although you may choose a different title. The aim is to research how the temperature of a hot object is lost when it is kept

Power series, Invoke the boundary condition Φ '(0)=0 to obtain a power seri...

Invoke the boundary condition Φ '(0)=0 to obtain a power series where the powers of x are multiples of 3.

Get the expression for the diameter of dark and bright ring, Explain the pr...

Explain the production of Newton's ring because of reflected light with a neat diagram. Get the expression for the diameter of both dark and bright ring.

Examples of like and unlike parallel forces, what are the examples of like ...

what are the examples of like and unlike parallel forces?

SAFA, Physics assignment electron microscopy component, solve problem. can ...

Physics assignment electron microscopy component, solve problem. can u solve these two problems with detailing and referencing if it needed

Define distance, The real length of path traversed by a body in a sub inter...

The real length of path traversed by a body in a sub interval of time is called as distance. It is the real path travelled by an object among its final and initial positions. It is

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