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Physics - W.E.P. Question with Solution | TestHub

PhysicsW.E.P.Calculation of workMedium2 minQB

PhysicsMediumsingle choice

A force of magnitude 50 N acting along $\hat{i} + \hat{j} + \hat{k}$ , displaces a point mass from (5, 9, 7) to (4, 8, 6). The work done by this force during this displacement is :-

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Answer:

Solution:

$F = \frac{50}{3} (\hat{i} + \hat{j} + \hat{k}), dx = r_{2} - r_{1} = - \hat{i} - \hat{j} - \hat{k}$

$∴ W = F \cdot d x = - 503 J$

Stream:JEESubject:PhysicsTopic:W.E.P.Subtopic:Calculation of work

⏱ 2mℹ️ Source: QB

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