Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
49 views
in Physics by (121k points)
A point mass of `1 kg` collides elastically with a stationary point mass of `5 kg`. After their collision, the `1kg`, mass reverses its direction and moves with a speed of `2ms^(-1)` . Which of the following statement(s) is (are) correct for the system of these two masses?
A. Total momentum of the system is 3 `kg-ms^(-1)`
B. momentum of 5 kg mass after collision is 4 `kg-ms^(-1)`
C. Kinetic energy of the centre of mass is 0.75 J
D. Total kinetic energy of the system is 4 J.

Please log in or register to answer this question.

1 Answer

0 votes
by (121k points)
Correct Answer - B

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

...