Laws of motion: find the time, 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:- Laws of motion: find the time

Geometrized units, Geometrized units: A system of units in which certa...

Geometrized units: A system of units in which certain fundamental constants (G, c, k, and h) are set to unity. It makes calculations in certain theories, such like general rel

Define hole in wall (princeton), Define Hole in Wall (Princeton)? A con...

Define Hole in Wall (Princeton)? A container is separated into two parts I and II by a partition with a small hole of diameter d Helium gas in the two parts is held at temper

Properties of laser, Properties of laser: Lasers have applications in ...

Properties of laser: Lasers have applications in various disciplines of science and technology. They also find applications in industry, medicine and defence and space science

Electrostatics, in a uniform electric field, the potential is 10v at the or...

in a uniform electric field, the potential is 10v at the origin and 8v at each of the points (1,0,0),(0,1,0) and (0,0,1).Find the potential at the point (1,1,1).

Resistance in parallel, Resistance in Parallel: When two or more resist...

Resistance in Parallel: When two or more resistance are linked in such a way that one end is of the every resistor is connected to one terminal of the battery whereas the other

How does colors change works in glass segments, How does a color changes wo...

How does a color changes works in glass, glass segments or a polymer material? This consists usually of a small, geared motor with a disc. It can be made of glass, a polymer ma

Explain simple microscope, Simple Microscope: A simple microscope of ma...

Simple Microscope: A simple microscope of magnifying glass is a convex lens which form virtual erect and magnifying image of an object which is placed with in it's focal length

Kinematics, A particle moving in a straight line with constant accelaration...

A particle moving in a straight line with constant accelaration is having initial velocity of 10 m/s. After some time, the velocity becomes 30 m/s. Find the velocity of particle at

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