LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
in Physics by (57.3k points)

A truck of mass 500 kg moving at 4 m/s collides with another truck of mass 1500 kg moving in the same direction at 2 m/s. What is their common velocity just after the collision if they move off together ?

1 Answer

0 votes
by (97.9k points)
selected by
Best answer

Mass of first truck, m1 = 500 kg

Speed of first truck, u1 = 4 m/s

Mass of second truck, m2 = 1500 kg

Speed of second truck, u2 =2 m/s

Combined mass of both trucks, m = 1500 + 500 = 2000 kg

Combined velocity v

Acc. to the law of conservation of momentum

m1 u1 + m2 u2 = mv

500 x 4 + 1500 x 2 = 2000 x v

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.