|

Mechanics

New kid on the Block

 Joined: 16 Dec 2007 Post: 4
16 Dec 2007 19:41:05 IST
0 People liked this
10
483
plzzz !! give me the proper solution of ques 19 of centre of mass of hc verma(page no.16
Engineering Entrance , Medical Entrance , AIPMT , JEE Main , AIIMS , JEE Advanced , Physics , Mechanics

plzzz !! give me the proper solution of ques 19 of centre of mass of hc verma(page no.16

New kid on the Block

Joined: 16 Dec 2007
Posts: 4
16 Dec 2007 19:43:56 IST
0 people liked this

plzzz give me the proper solution of hc verma`s centre of mass topic ques19 (page 161)
it`s urgent!!!!!!!

Blazing goIITian

Joined: 22 Apr 2007
Posts: 2537
16 Dec 2007 19:45:36 IST
0 people liked this

ok

Hot goIITian

Joined: 4 Aug 2007
Posts: 108
16 Dec 2007 19:47:36 IST
0 people liked this

Is the ans 2.4*105 if it is true pls do tell me i will be able to do.....

Blazing goIITian

Joined: 12 Nov 2007
Posts: 577
16 Dec 2007 19:57:29 IST
0 people liked this

If you are lazy enough to type the question , others are lazy enough to not type the soln.

Scorching goIITian

Joined: 21 Oct 2007
Posts: 271
16 Dec 2007 20:00:53 IST
0 people liked this

wait jst 2 min

Scorching goIITian

Joined: 21 Oct 2007
Posts: 271
16 Dec 2007 20:03:01 IST
0 people liked this

conserve momentum u ll get it directly
Actually there r many numericals m too lazy too solve it sry....

Hot goIITian

Joined: 4 Aug 2007
Posts: 108
16 Dec 2007 20:04:28 IST
0 people liked this

Rooney got me exactly i will help him in typingquestion ...............ya i was lil lazy i guess

Hot goIITian

Joined: 4 Aug 2007
Posts: 108
16 Dec 2007 20:07:16 IST
0 people liked this

A uraniun-238 ,initially at rest ,Emits an alpha particle with a speed of 1.4*107.calculate the recoil speed of the residual nucleus thorium-234. assume that the mass of a nucleus is proportional to the mass number

Blazing goIITian

Joined: 1 May 2007
Posts: 2830
16 Dec 2007 20:10:50 IST
0 people liked this

Use conservation of momentum

k x 4 x 1.4 x 107 = k x 234 x v (assuming no external force acts on the system)

(we use k as the absolute mass is proportional to the mass number)

hence find v

Scorching goIITian

Joined: 14 Dec 2007
Posts: 266
17 Dec 2007 16:43:40 IST
0 people liked this

it appears that others have answered the 18th question.

Well i guess I'm answering the correct one.

Rate me if you find it helpful.
Nudge me if you need help in deciphering my handwriting

 Some HTML allowed. Keep your comments above the belt or risk having them deleted. Signup for a avatar to have your pictures show up by your comment If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team

## For Quick Info

Name

Mobile

E-mail

City

Class

### Find Posts by Topics

Physics

Topics

Mathematics

Chemistry

Biology

Institutes

Parents Corner

Board

Fun Zone

Vertical Limit

Top Contributors
All Time This Month Last Week
1. Bipin Dubey
 Altitude - 16545 m Post - 7958
2. Himanshu
 Altitude - 10925 m Post - 3836
3. Hari Shankar
 Altitude - 9960 m Post - 2185
4. edison
 Altitude - 10815 m Post - 7797
5. Sagar Saxena
 Altitude - 8625 m Post - 8064