Screenshot_2019-01-21-11-01-29-165_com.android.chrome.png
A man of mass 80 Kg stand on a blank of mass
40 Kg . The block is lying on smooth horizonatl
floor . Initially both are at rest . The man starts
walking on the blank towards north and stops
after moving a distance 6m on the blank . The
plank will move
Answers (1)
@Shubham
If External Force = 0 -
- wherein
i.e. if no external force is acting on the system, net momentum of the system remains constant.