Topics covered in Lecture 25 of Friction Force in chapter Newton's Laws of Motion for JEE & NEET in Onion Physics are listed below with timestamps:


Timestamps:
00:00 Friction for JEE & NEET
02:46 Motion of block pulled by boy on rough surface
04:47 Important points about Friction
05:35 Limiting Friction and coefficient of static friction
06:50 Relation between friction and normal reaction
07:36 Concept of Sliding - When does block start sliding?
10:19 Kinetic friction and relation between kinetic and limiting friction
11:51 Graphical representation of Friction varying with external force
13:20 Acceleration of blocks on rough surface in pulley block system
16:20 Tension in strings with friction in pulley block system
17:05 Motion of block on rough surface in pulley block system
20:00 Minimum force required to slide a block on rough surface
21:00 If force is applied at an angle, minimum force required to slide a block on rough surface
23:46 Angle of friction
24:40 Pushing a block at an angle on rough surface such that it does not slide at all
28:46 Acceleration of block sliding over a rough wedge
30:05 Angle of Repose
32:06 Condition of sliding the block on rough inclined plane
33:07 Upward sliding of block on rough wedge
34:42 Acceleration of block wedge system when released from rest on rough wedge


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