Search This Blog

Showing posts with label mechanics. Show all posts
Showing posts with label mechanics. Show all posts

Block on Rough Table - Friction Question - Maharashtra Board Class 11 Physics textbook solutions


 Clickhere
for the solution of Block on Rough Table - Friction Question - Maharashtra Board Class 11 Physics textbook


Figure below shows a block of mass 35 kg resting on a table. The table is so rough that it offers a self adjusting resistive force 10% of the weight of the block for its sliding motion along the table. A 20 kg wt load is attached to the block and is passed over a pulley to hang freely on the left side. On the right side there is a 2 kg wt pan attached to the block and hung freely. Weights of 1 kg wt each, can be added to the pan. Minimum how many and maximum how many such weights can be added into the pan so that the block does not slide along the table?

Equilibrium study of a ladder leaning against a rough wall - Maharashtra Board Class 11 Physics Textbook Chapter 4

 A uniform ladder of mass m and length leans against a frictionless wall at an angle to the horizontal -  with its bottom resting on a rough surface.


Question (xv) Maharashtra Board Class 11 Physics Textbook Chapter 4

A 2 m long ladder of mass 10 kg is kept against a wall such that its base is 1.2 m away from the wall. The wall is smooth but the ground is rough. Roughness of the ground is such that it offers a maximum horizontal resistive force (for sliding motion) half that of normal reaction at the point of contact. A monkey of mass 20 kg starts climbing the ladder. How far can it climb along the ladder? How much is the horizontal reaction at the wall?
 

 

 

How to solve Collision problems| Coefficient of Restitution| Loss in Kinetic Energy

In this video we learn how to solve Collisions problems. We learn about the momentum conversation law, elastic/ inelastic collisions, how to calculate Coefficient of Restitution, how to calculate loss in kinetic energy - step by step method.

 

 


Man in a moving Elevator - Discussion and Solved Worksheet

In this lecture we derive Apparent Weight of a man in accelerated elevator. Before that have a detailed discussion on the pseudo forces and how to apply them in Non Inertial Frames. 
 

Also check the video where I have solved this worksheet.