Answer latera man goes from a to b at v1 speed and returns from b to a at v2 speed . find average speed
A man goes from a to b at v1 speed and returns from b to a at v2 speed.
Let distance between a and b = d
let time taken by man go from a to b = t1 and time taken by man return from b to a =t2
As we know,
time = distance / speed
so, t1 = d /v1 and t2= d/v2
ATQ,
average speed = total distance/total time
= (d+d) / (t1+t2 )
= (d+d) /(d/v1 + d/v2)
= 2d / (d(v2+v1)/v1*v2)
= (2v1*v2) / (v2+v1)
Answer = 2(v1*v2) / (v2+v1)
chapter tht come under kinematics?
Hi Aspirant,
Kinematics is an important chapter and it includes laws of motion,Rotational Motion which comprises of omprises of basic concepts of rotational motion, force, torque, and angular momentum. It also includes gravitationlike Universal law of gravitation, Kepler's law of planetary motion.
Hope it helps!!
I have an limited time which chapter best kinematics or system of particle and rotational motion in physics for jee mains pls tell
Actually, the topics you mention in the question contain almost the same weightage in the JEE Mains exams. Although I don't recommend you to leave some chapters and read some, if you go weightage wise, all are same.
The link given below will help you in analysing the chapter weightage and syllabus for all the three subjects.
https://engineering.careers360.com/articles/jee-main-syllabus-weightage
Hope this helps.
Good luck!
what is the fast reaction method of the study flow method
Hi
As per your question In this method the investigation starts with a response system in equilibrium; the
response to be studied has finished, and no in addition changes take place. The external conditions are
then altered very rapidly; the gadget is then now not at equilibrium, and it relaxes to a brand new
equilibrium.
Ex: These reactions can take vicinity in seconds or in minutes. ... For example, combustion of LPG
gasoline in kitchen takes region in a few seconds so it's far a quick reaction. In the same way reaction of
an acid like HCl with a base including NaOH takes area in seconds to provide a salt NaCl and water may
be very fast response.
Hope helpful.
which chapters comes under kinematics,mechanics and modern physics in jee mains from both class 11 and 12 for jee physics....and in mathematics which chptrs comes under co-ordinate geometry and calculus from class 11 and 12....????? pls reply..im in confusion...
In physics
Kinematics- 1d, 2d
Mechanics-NLM, FRICTION, CIRCULAR MOTION, ROTATIONAL DYNAMICS, FLUID MECHANICS. Gravitation.
Modern physics- Nuclei, Atom Nuclear Physics, Atomic structure Communication System etc.
In maths.
Co ordinate geometry- Conic section like parabaola ellipse and hyperbola,
and in calculas it's integration derivative and differential calculas.
I hope this helps
According to the kinetic theory of gases, at absolute temperature
Hello Shivendra, According to the kinetic theory of gases, at absolute temperature, The normal active vitality of gas particles is straightforwardly relative to total temperature just; this suggests all sub-atomic movement stops if the temperature is diminished to total zero.
Hope this helps.
Thank you.
who is better at kinematics physics wallah sir or namo kaul sir .
Namo koul sir is best in kinematics
What is coulombs law? And limitations of coulombs law
Hey Raushan,
Hope You are doing Well!
COULOMB'S LAW:
It is the law that the force (attraction/repulsion) between two charges is equal to the product of their charges and inversely proportional to the square of distance between them.
LIMITATIONS OF COULOMB'S LAW:
1)Applicable only in cases when inverse law works.
2)Applicable For Point Charges at Rest
3)It is Difficult to apply Coulomb's Law,when charges are in arbitrary shape.
Hope This was helpful!
All The Best!
Keep Smiling :)
