JEE Main Physics question
Two masses m₁ = 5 kg and m₂ = 4.8 kg, tied to a string, are hanging over a light frictionless pulley. What is the acceleration of the masses when they are free to move? (g = 9.8 m/s²)
Answer: (A)
Solution
a = (m₁−m₂)g/(m₁+m₂) = (0.2 × 9.8)/(9.8) = 1.96/9.8 = 0.2 m/s².