Question

Two blocks of mass 4 kg and 6 kg are placed in contact with each other on a frictionless horizontal surface. If a push of 5 N is applied on the lighter mass, the force exerted by the lighter mass on the heavier mass will be

• A. 5 N
• B. 4 N
• C. 2 N
• D. None of the above

Answer 1

Answer: (D)

None of the above

Answer 2

Force on the heavier mass $= \frac{m_{1}F}{m_{1} + m_{2}} = \frac{6 \times 5}{6 + 4}$ $= 3N$