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Mechanics

New kid on the Block

 Joined: 11 Mar 2007 Post: 1
11 Mar 2007 17:43:32 IST
0 People liked this
3
498
a good sum for iit aspirants. well this is one from COM,CONSERVATION OF LINEAR MOMENTUM N
Engineering Entrance , Medical Entrance , AIPMT , JEE Main , AIIMS , JEE Advanced , Physics , Mechanics

A TROLLEY CARRRYING A MAN IS MOVING WITH A VELOCITY V m/s.
IF THE MAN STARTS RUNNING A T A SPEED OF 3V/2 m/s WRT THE TROLLEY & ON REACHING THE OTHER END TURNS BACK & COMES BACK WITH SAME VELOCITY, FIND THE DISPLACEMENT OF THE MAN WRT EARTH DURING THE WHOLE PROCESS.
WEIGHT OF MAN = WEIGHT OF TROLLEY.
LENTH OF TROLLEY = L

WELL ! THIS IS A 3 LINE ANSWER!
JUST TRY!

Hot goIITian

Joined: 11 Dec 2006
Posts: 172
11 Mar 2007 18:10:13 IST
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as the person moves towards left trolly moves towards right ,so COM shud change its position.Keeping this as base solve the problem

Cool goIITian

Joined: 31 Dec 2006
Posts: 31
11 Mar 2007 18:30:27 IST
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hey i got ans as 4/3 L is it correct

Cool goIITian

Joined: 31 Dec 2006
Posts: 31
11 Mar 2007 18:34:29 IST
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waiting for ans

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