Physics, asked by NayyarSultana, 10 months ago

If F=4i+5j and S=3i+6k then what is the work done

Answers

Answered by rslekshmi08

2

W= F×S

=(4i+5j) × ( 3i+6k)

=| i. j. k. |

| 4 5. 0. |

| 3. 0. 6 |

= (30-0) i - (24-3) j +(0-15)k

= 30i -21j -15 k

NayyarSultana: Thnx

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