(A) solid and soft (X)
(B) soft and elastic (X)
(C) solid and hard ()
(D) hard and elastic (X)
Answers: The collision between two bodies be elastic if bodies are solid and hard.
(A) solid and soft (X)
(B) soft and elastic (X)
(C) solid and hard ()
(D) hard and elastic (X)
Answers: The collision between two bodies be elastic if bodies are solid and hard.
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