Multiple choice question XII — task. Science CBSE, Class 9.

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1. A body just dropped from a tower explodes into two pieces of equal mass in mid-air. Which of the following is not possible?

(A) Each part will follow parabolic path
(B) Only one part will follow parabolic path
(C) Both parts move along a vertical line
(D) One part reaches the ground earlier than the other

2. In elastic collision between two bodies, complete energy is transferred when:

both bodies have equal mass
both bodies are moving
heavy body is moving and lighter one is at rest
lighter body is moving and heavier one is at rest

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