Question:
A block of mass 4 kg lies over a horizontal surface Another
Last updated: 6/12/2023
![A block of mass 4 kg lies over a horizontal surface Another](https://media.kunduz.com/media/sug-question-candidate/20210923032901974880-3668051.jpg?h=512)
A block of mass 4 kg lies over a horizontal surface Another block of mass 2 kg is placed over the first block The normal reaction between the lower block and ground surface is g 1 ms 2 O 40 N O 60 N 20 N 10 N