Question
Question: A ball is dropped from height 10 m. Ball is embedded in sand 1 m and stops, then...
A ball is dropped from height 10 m. Ball is embedded in sand 1 m and stops, then
A
Only momentum remains conserved
B
Only kinetic energy remains conserved
C
Both momentum and K.E. are conserved
D
Neither K.E. nor momentum is conserved
Answer
Only momentum remains conserved
Explanation
Solution
Momentum of earth-ball system remains
conserved.