Momentum of force 2i +3j+4k acting at (3i+4j+5k) about the point (i+2j+3k)
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Answer:
Momentum = -2i+4j-2k
Explanation:
Momentum of force=2i +3j+4k
Point at which force is acting=(3-2)i+(4-2)j+(5-3)j
=2i+2j+2k
Momentum= Force×Point at which force is acting
=| i j k |
| 2 3 4 |
| 2 2 2 |
.........(after solving by matrices)
Momentum = -2i+4j-2k
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