Physics, asked by bhukyaramana3680, 9 months ago

When a force vector F = (a + 2î +k)n acts on a body and produces a displacement of S = (4î +î + 7k)m, , then the work
done is

Answers

Answered by jtg07

Explanation:

use formula w = f×s×cos theta

force vector is given

get magnitude by:

➡️√a²+4+k²

displacement vector is given

get magnitude by:

➡️√16+1+49k²

to get the angle theta,

you can do dot product or cross product

F.S = |f||s|cos theta

you will get the value of cos theta

that is 10/product of magnitude

put in equation,

your answer will be

F×S×10/F×S

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When a force vector F = (a + 2î +k)n acts on a body and produces a displacement of S = (4î +î + 7k)m, , then the workdone is​

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When a force vector F = (a + 2î +k)n acts on a body and produces a displacement of S = (4î +î + 7k)m, , then the work
done is