A bullet fired into a wooden block, loses half of its velocity after penetrating 90 cm. Before coming to rest it penetrates a further distance of –
Text Solution
Verified by ExpertsThe correct answer is:
C
(v/2) 2 = v 2 – 2a (90)
⇒ 180a = 
……(1)
0 = 
– 2ax
⇒ 2ax = v 2 /4 ……... (2)
From (2)/ (1), 
= 
⇒ x = 30 cm
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