badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 10

                        

A worker wishes to pile a cone of sand on to a circular area in his yard. The radius of the circle is r; no sand is to spill on to the surrounding area. If μ is the static coefficient of friction between each layer of sand, show that the greatest volume of sand that can be stored in this manner is 1/3πμr 3


A worker wishes to pile a cone of sand on to a circular area in his yard. The radius of the circle is r; no sand is to spill on to the surrounding area. If μ is the static coefficient of friction between each layer of sand, show that the greatest volume of sand that can be stored in this manner is  1/3πμr3            

 



 


 






 




 

 


 






 


 





 












 



















 

















 















 













 











 









 







 





 



 


 

10 years ago

Answers : (2)

Aman Bansal
592 Points
							

 

 

N =Fgy = mgcosθ

 

f = Fgx = mg sinθ < fs max = µN=  µmgcos theta--> μ > tan theta

The surface of the cone has the greatest slope and the height of the cone is

 

maximum if :

 

 

 

 

 

 

 

μ=tan theta = h/r = rμ

Vcone = A*h /3 = piμs r3/3

We are all IITians and here to help you in your IIT JEE preparation.

Now you can win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.

Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar : Click here to download the toolbar.. 

 

AMAN BANSAL

10 years ago
AKASH GOYAL AskiitiansExpert-IITD
419 Points
							

Dear Kaushik

See the pic for the solution

All the best.                                                           

AKASH GOYAL

AskiitiansExpert-IITD

 

Please feel free to post as many doubts on our discussion forum as you can. We are all IITians and here to help you in your IIT JEE preparation.

Win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.

Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar  respectively : Click here to download the toolbar..

 

 

2383_23499_Photo-0154.jpg

10 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 101 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 110 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details