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Two bodies of masses 10kg and 2 kg are m...

Two bodies of masses 10kg and 2 kg are moving with velocities `2hati-7hatj+3hatk ms^(-1)` and `-10hati+ -35hatj-3hatk` respectively. Find the velocity of the centre of mass.

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Find the angle between the vector 2 hati+ 3hatj+ hatk and 2 hati - hatj- hatk .

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If vecA = 2hati + 2hatj + 2hatk and vecB = 5hati + 5hatj + 5hatk then vecA. vecB and vecA xx vecB

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Find | veca xx vecb| where veca = 3 hati - hatj + 2 hatk and vecb = 2 hat i + 3 hatj - 4hatk.

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