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
Ananya Chandra Grade: 12
        

Sir,


an insect of mass 'm' is initially at rest at one end of a stick of length 'L' and mass 'M' , which rests on a smooth horizontal floor.The cofficient of friction between the insect and stick is 'k'. The insect starts moving to reach the other end in shortest possible time.


 


Q1.Find the time taken to reach the other end?


Q2.What is the magnitude of linear momntum of insect at time "t"?


Q3.What is the maximum speed aquired by the stick??


 


please sir while answering do explain ur approach..!!

8 years ago

Answers : (1)

askiitian.expert- chandra sekhar
10 Points
										

Hi Ananya,


friction force is kmg


accelearation of insect is kg


accelearation of rod is kmg/M


acceleration of insect wrt rod is kg+kmg/M=kg(1+m/M)=a


time taken by the insect to re3ach the other end is t=√(2*L/a)


linear momentum of insect at time t = mv =m*a*t


maximum speed acquired by the rod= u


momemtum conservation: Mu=mv=m*√(2*L*a)


u=(m/M)*√(2*L*a). where a=kg(1+m/M).

8 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete Physics Course - Class 12
  • OFFERED PRICE: Rs. 2,756
  • View Details
  • Complete Physics Course - Class 11
  • OFFERED PRICE: Rs. 2,968
  • View Details

Ask Experts

Have any Question? Ask Experts

Post Question

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