JEE Main 2026 Physics question
Two identical bodies A and B of equal masses have initial velocities v⃗₁=4î m/s and v⃗₂=4ĵ m/s respectively. The body A has acceleration a⃗₁=6î+6ĵ m/s² while the acceleration of the other body B is zero. The centre of mass of the two bodies moves in path.
Answer: (C)
Solution
=(4î+4ĵ)/2=2î+2ĵ and =(6î+6ĵ)/2=3î+3ĵ. The acceleration is parallel to the velocity, so the centre of mass moves in a straight line.