The centre of mass of three particles of masses 1 kg, 2kg and 3kg is at (2, 2, 2). The position of the fourth mass of 4 kg to be places in the system as that the new centre of mass is at (0, 0, 0) is
a)
(-3,-3,-3)
b)
(-3,3,-3)
c)
(2,3,-3)
d)
(2,-2,3)
The centre of mass of three particles of masses 1 kg, 2kg and 3kg is at (2, 2, 2). The position of the fourth mass of 4 kg to be places in the system as that the new centre of mass is at (0, 0, 0) is
a)
(-3,-3,-3)
b)
(-3,3,-3)
c)
(2,3,-3)
d)
(2,-2,3)
Question ID - 52964 | SaraNextGen Top Answer
The centre of mass of three particles of masses 1 kg, 2kg and 3kg is at (2, 2, 2). The position of the fourth mass of 4 kg to be places in the system as that the new centre of mass is at (0, 0, 0) is
a)
(-3,-3,-3)
b)
(-3,3,-3)
c)
(2,3,-3)
d)
(2,-2,3)
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The centre of mass of three particles of masses 1 kg, 2kg and 3kg is at (2, 2, 2). The position of the fourth mass of 4 kg to be places in the system as that the new centre of mass is at (0, 0, 0) is |
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a) |
(-3,-3,-3) |
b) |
(-3,3,-3) |
c) |
(2,3,-3) |
d) |
(2,-2,3) |
1 Answer
127 votes
Answer Key / Explanation : (a) -
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(a)
Position of centre of mass (2, 2, 2,)
New position of centre of mass (0, 0, 0). For initial position
Similarly, and For new position,
Similarly,
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kg
Position of fourth mass (-3, -3, -3)127 votes
Answer Link
127