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

PhysicsW.E.P.Calculation of workMedium2 minQB

PhysicsMediumnumerical

Two persons $A$ and $B$ perform same amount of work in moving a body through a certain distance $d$ with application of forces acting at angles $45 °$ and $60 °$ with the direction of displacement respectively. The ratio of force applied by person $A$ to the force applied by person $B$ is $\frac{1}{\sqrt{x}} .$ The value of $x$ is _________.

Answer:

2.00

Solution:

Given, $W_{1} = W_{2}$ and, we know that work done is a scalar quantity it means, $F_{1} S \cos 45 ° = F_{2} S \cos 60 °$ $\Rightarrow \frac{F_{1}}{F_{2}} = \frac{1}{\sqrt{2}} = \frac{1}{\sqrt{x}}$ $\Rightarrow x = 2$ .

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

⏱ 2mℹ️ Source: QB

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