JEE Main2013PhysicsCenter of Mass, Momentum and CollisionActual
A boy of mass 20 ~kg is standing on a 80 ~kg free to move long cart. There is negligible friction between cart and ground. Initially, the boy is standing 25 ~m from a wall. If he walks 10 ~m on the cart towards the wall, then the final distance of the boy from the wall will be
Options
- A15 ~m
- B12.5 ~m
- C15.5 ~m
- D17 ~m
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