A ball is dropped from height $10 \,m$. Ball is embedded in sand $1 \,m$ and stops, then
Only momentum remains conserved
Only kinetic energy remains conserved
Both momentum and K.E. are conserved
Neither K.E. nor momentum is conserved
A ball is dropped from height $10 \,m$. Ball is embedded in sand $1 \,m$ and stops, then
Momentum of earth-ball system remains conserved.