1option a ?
In a free space the, a rifle of mass M shoots a bullet of mass m at a stationary block of mass M distance D away from it. When the bullet has moved through a distance d towards the block, the centre of mass of the bullet-block system will be at a distance of:
a)m(D-d)/M+m from the block
b)(m+M)d/M from the rifle
c)M(D+d)m+M from the bullet
d)none of these
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3 Answers
6yes the correct answer is a! and this time is the silly mistake made by me and that is i did not read the options and was solving for distance from the block which was comming as md+MD/(m+M)
6hence i marked D and got reduction of 4 marks in the test paper!