A vector `vecF_(1)` is along the positive `X`-axis. If its vectors pro – InterviewSolution

1.	A vector `vecF_(1)` is along the positive `X`-axis. If its vectors product with another vector `vecF_(2)` is zero then `vecF_(2)` could beA. `4hatj`B. `(hatk+hatj)`C. `(hatj+hatk)`D. `-4hati`
Answer» (d) Let `F_(1)=xhati` As, `F_(1)xxF_(2)=0` and only `hatixxhati=0` `:. F_(2)=-4hati`

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