Question

check the correctness of dimenisional F. S =1/2 mv^2 -1/2 mu^2
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Answer 1

Answer:

two vectors a and b are given in a component form as a = 7i^ + 4j^ 3k^ , and b = 5i^ + 4j^ + 2k^ . find a+b, b+a , a-b , b-a

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