Question

São dados três deslocamentos em metros: d1= 4,0 i+ 5,0 j - 6,0 k, d2= 1,0 i+ 2,0 j+ 3,0 k e d3= 4,0 i+ 3,0 j+ 2,0 k. Determine r= d1 - d2 + d3.

A)

r = 9,0 i + 6,0 j - 7,0 k

B)

r = 3,0 i + 4,0 j - 7,0 k

C)

r = 9,0 i + 3,0 j - 2,0 k

D)

r = 1,0 i + 1,0 j - 1,0 k

E)

r = o


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Answer 1

Resposta:

A)

Explicação:

r = 9,0 i + 6,0 j - 7,0 k