Laws Of Motion Question 216
Question: A cart of mass M is tied by one end of a massless rope of length 10 m. The other end of the rope is in the hands of a man of mass M. The entire system is on a smooth horizontal surface. The man is at x = 0 and the cart at x = 10 m. If the man pulls the cart by the rope, the man and the cart will meet at the point[CBSE PMT 1997]
Options:
A) $ x=0 $
B) $ x=5m $
C) $ x=10m $
D) They will never meet
Show Answer
Answer:
Correct Answer: B
Solution:
In the absence of external force, position of centre of mass remain same therefore they will meet at their centre of mass.
