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InterviewSolution
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A force is acting on a body moving along x-axis in the direction of motion of the body. If this force produces a potential energy `u=Ax^(4),` where `A=1.2Jm^(-4),` then the what is the force acting on the body when the body is at `x=-0.8m`? |
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Answer» Here, `U=Ax^(4)` `F_(x)=-(partialU)/(partialx)=(partial )/(partial x)(Ax^(4))=-4Ax^(3)` When `x=-0.8m, ` then `F_(x)=-4xx1.2(-0.8)^(3)=2.46N` |
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