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: 11
        a solid, a ring and a circular disc of identical radii are rolling down on a inclined plane without slipping from the height starting from rest. which will reach the bottom first and which ill reach the bottom least
2 years ago

Answers : (1)

Arun
23489 Points
							
Dear Student
 
 

                                                     solid sphere              disc              solid cylinder

 

Moment of Inertia (I)                    (2/5)MR2                  MR2 /2             MR2 /2

 

Radious of Gyration (K)                Underoot(2/5)      R/root2           R/root2

 

 

 

Any of them on rolling on inclined plane will have an acceleration,

 

a = gsin8/R2 + K2

 

It means maximum radius of gyration having object will have minimum acceleration.

 

Decrease in acceleration .i.e decrease in velocity and thus kinetic energy.

 

 

 

Now, Solid sphere has lowest value of ''K'' thus it rolls down with maximum speed.

 

Hence it will reach the bottom first.

 

And disc and solid sphere will reach at the same time with same speed.

 
Regards
Arun (askIITians forum expert)
2 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