Question

TWO FORCES F1 = ( i + j -3k ) N AND F2 = ( 3i + 3j -k ) N ACT ON A PARTICLE AT A POINT. THE PARTICLE IS DISPLACED BY A SMALL DISPLACEMENT ( 2i + j + 2k ) meter. CALCULATE THE WORK DONE IN JOULE BY THE RESULTANT FORCE.

Answer 1

Explanation:

We know Workdone = Net force • Net Displacement.

-> Calculate net Force by F1 - F2

-> Find the dot product of Fnet and Displacement.

You'll get the answer.

Hope it helps.

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