Two particles whose masses are 10 k g and 30 k g and their position vectors are i ^ + j ^ + k ^ and - i ^ - j ^ - k ^ respectively would have the centre of mass at

Question

Two particles whose masses are 10 k g and 30 k g and their position vectors are i ^ + j ^ + k ^ and - i ^ - j ^ - k ^ respectively would have the centre of mass at, - i ^ + j ^ + k ^ 2, i ^ + j ^ + k ^ 2, - i ^ + j ^ + k ^ 4, i ^ + j ^ + k ^ 4

MARKS App · Accepted Answer

r c m → = m 1 r 1 → + m 2 r 2 → m 1 m 2 ⇒ r c m → = 10 i ^ + j ^ + k ^ + 30 - i ^ - j ^ - k ^ 40 ⇒ r c m → = - 20 i ^ + j ^ + k ^ 40 ⇒ r c m → = - i ^ + j ^ + k ^ 2

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