JEE Main Physics question
Two blocks of masses 1 kg and 2 kg rest on a smooth horizontal table. When the 2 kg block is pulled by a certain force F, the tension T in the connecting string is 1.5 N. The value of F is
Answer: (D)
Solution
a = T/m₁ = 1.5/1 = 1.5 ms⁻². F = (m₁+m₂)a = 3×1.5 = 4.5 N.