If a body loses half of its velocity on penetrating 3 cm in a wooden block, then how much will it penetrate more before coming to rest?

Question : If a body loses half of its velocity on penetrating 3 cm in a wooden block, then how much will it penetrate more before coming to rest?

(a) 1cm

(b) 2cm

(c) 3cm

(d) 4cm

Answer : The right option is (a)

Solution :

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