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High School/JEE/NEET/IPhO Physics | 17-19 Yrs
Onion Physics for JEE & NEET
Revision Checklist Physics JEE/NEET | 17-19 Yrs
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High School/JEE/NEET/IPhO Physics | 17-19 Yrs
Basic Tools
Basics of Differentiation
Basics of Integration
Basics of Vectors
Basics of Solid Angle
Units and Dimensions
Mechanics
Motion in One Dimension
Motion in Two Dimensions
Relative Motion
Constrained Motion
Newton’s Laws of Motion
Friction
Work Energy Power
Circular Motion
System of Particles-I
System of Particles-II
Rigid Body Dynamics
Heat & Thermodynamics
Thermal Expansion
Calorimetry
Kinetic Theory of Gases
Laws of Thermodynamics
Heat Transfer
Oscillation & Waves
Simple Harmonic Motion
Waves Motion
Interference of Waves
Stationary Waves and Beats
Doppler’s Effect
Properties of Matter
Fluid Statics
Fluid Dynamics
Surface Tension
Viscosity
Elasticity
Gravitation
Gravitational Field
Satellite Motion
Electrostatics
Electric Charges and Fields
Electric Potential and Dipole
Electric Flux and Gauss’s Law
Conductors & Dielectrics
Electrostatic Energy and Electric Pressure
Capacitance
Electric Current & Circuits
Current Electricity
Circuit Analysis
Thermal Effects of Current
RC Circuits
Electrical Measuring Instruments
Magnetic Effects
Magnetic Effects of Current
Magnetic Force on Moving Charges
Electromagnetic Induction
Self & Mutual Inductance
Classical & Terrestrial Magnetism
Magnetic Properties of Materials
Alternating Current
Electromagnetic Waves
Optics
Geometrical Optics I - Reflection of Light
Geometrical Optics II - Refraction of Light
Geometrical Optics III - Thin Lenses
Dispersion of Light
Interference of Light
Diffraction of Light
Polarization of Light
Photometry
Optical Instruments
Modern Physics
Atomic Structure
Photo Electric Effect
Wave Particle Duality
X-Rays
Radioactivity
Nuclear Physics
Semiconductors
Semiconductor
PN Junction & Diodes
Transistor and its Application
Logic Gates
Communication Systems
Communication Systems
Modulation and Demodulation
Newton's Laws of Motion
Module - 1
Forces of Nature
Duration: 7.38 Min
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Module - 2
Force can Change the State of Motion
Duration: 5.53 Min
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Module - 3
Balanced & Unbalanced Forces
Duration: 9.38 Min
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Module - 4
Newton's Laws of Motion
Duration: 11.28 Min
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Module - 5
Free Body Diagram
Duration: 2.59 Min
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Module - 6
Normal Reaction
Duration: 9.33 Min
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Module - 7
Tension in String
Duration: 12.28 Min
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Module - 8
Applications of Newton's Second Law
Duration: 13.43 Min
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Module - 9
Solved Example-1
Duration: 3.19 Min
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Module - 10
Solved Example-2
Duration: 4.00 Min
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Module - 11
Solved Example-3
Duration: 5.12 Min
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Module - 12
Solved Example-4
Duration: 5.15 Min
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Module - 13
Solved Example-5
Duration: 3.33 Min
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Module - 14
Concept of Weighing Machine
Duration: 13.06 Min
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Module - 15
Spring Force
Duration: 11.00 Min
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Module - 16
Concept of Spring Balance
Duration: 10.00 Min
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Module - 17
Concept of Pseudo Force
Duration: 16.24 Min
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Module - 18
Solved Example-6
Duration: 4.50 Min
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Module - 19
Solved Example-7
Duration: 5.26 Min
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Module - 20
Solved Example-8
Duration: 3.48 Min
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Module - 21
Solved Example-9
Duration: 2.32 Min
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Module - 22
Solved Example-10
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HOW TENSION IS EQUAL TO FRICTION IN THIS CASE ?
1 years ago by
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Sir if we make string in straight line then acceleration should be added but you have substracted.. I cant understand
5 years ago by OMESH KUMAR
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how can both the acc.. be in downward direction
6 years ago by Md Zakie Akhtar Ansari
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Sir,'l' is the length of rod also and the distance by the rod also?Not able to understand,please explain!
6 years ago by Manasi Singh
Ans 1 ->
*distance covered
6 years ago by
Manasi Singh
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For the rod of mass M,in the equation of motion i.e.,in the second equation,have you simply substituted 'f' in place of 'T'?Or you have used some other logic?
6 years ago by Manasi Singh
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Sir,while writing the equations of motion,how do we consider which force is smaller and which one is larger?Is the bigger force in that direction in which the body is accelerating?
6 years ago by Manasi Singh
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How can both the accelerations be in downward direction?
6 years ago by Manasi Singh
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Is rod also coming down the string?Or is it moving along the string?
6 years ago by Manasi Singh
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Why is there tension force down the bead?
6 years ago by Manasi Singh
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sir I take that string is just attached to rod at one end then for acceleration of rod friction will not be coming into picture and it is not mentioned in the question as well. Sir I just want to say how I thought immediately after seeing question and I understand your solution sir.
7 years ago by dinesh sai
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SIR HOW FRICTION ACTING ON STRING IS DOWNWARD AND HOW IS IT EQUAL TO TENSION
8 years ago by KAIKALA RAVI KUMAR
Ans 1 ->
do not think that bead is hung on the string as bead is free to slide on the string as friction on bead acts upward due to sting same friction acts downward on sting due to bead and as sting is mass less the two forces acting on string will be same
7 years ago by
Prateek Kumar
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actually i am asking how friction on string is in downward direction
8 years ago by Manav kapur
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sir please tell how friction is equal to tension i am not getting it !
8 years ago by Manav kapur
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