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A train of mass is moving on a circular tracke of radius ‘  with constant speed  The length of the train is half of the perimeter of the track. The linear momentum of the train will be

a)

0

b)

c)

d)



Question ID - 100387 | SaraNextGen Top Answer

A train of mass is moving on a circular tracke of radius ‘  with constant speed  The length of the train is half of the perimeter of the track. The linear momentum of the train will be

a)

0

b)

c)

d)

1 Answer
127 votes
Answer Key / Explanation : (b) -

(b)

If we treat the train as a ring of mass  then its  will be at a distance 2  from the center of the circle. Velocity of the center of mass is

As the linear momentum of any system is  the linear momentum of the train is

127 votes


127