LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
23 views
in Physics by (66.1k points)
closed by
A railway carriage of mass `10g and 200g` are moving along the same line in the same direction with velocities of `2m//s and 1m//s` respectively. They collide and after the collison, the first object moves with a velocity of `1.67m//s` in the same direction. Determine the velocity of the second object.

1 Answer

0 votes
by (68.4k points)
selected by
 
Best answer
Here, `m_(1)= 10` metricton `= 10000kg, v_(1)= 15m//s, m_(2) 5` metricton `= 5000kg, v_(2)=0. , v=?`
Using principle of conservation of linear momentum, we have
`(m_(1)+m_(2))v = m_(1)v_(1)+m_(2)v_(2)= m_(1)v_(1)`
`v=(m_(1)v_(1))/(m_(1)+m_(2)) = (10000xx15)/((10000+5000))=10m//s`

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...