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Standard XII

Physics

Introduction

Two particle ...

Question

Two particle separated at a horizontal distance $X$ as shown in figure, they projected at the same line as shown in figure with different initial speed. The timer after which the horizontal distance between them become zero -

\frac{x}{u}

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\frac{u}{2 x}

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\frac{2 u}{x}

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None of these

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Solution

The correct option is D None of these
LetAngle of projection for A=30oAngle of projection for B=60oRequired condition:Distance traveled by A−Distance traveled by B=x[u3√]cos30o×t−ucos60o×t=x[u3√](3√2)×t−u(12)×t=xut[32−12]=xut=xt=xu

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Two particle separated at a horizontal distance X as shown in figure, they projected at the same line as shown in figure with different initial speed. The timer after which the horizontal distance between them become zero -

The correct option is D None of theseLetAngle of projection for A=30oAngle of projection for B=60oRequired condition:Distance traveled by A−Distance traveled by B=x[u3√]cos30o×t−ucos60o×t=x[u3√](3√2)×t−u(12)×t=xut[32−12]=xut=xt=xu

Two particle separated at a horizontal distance $X$ as shown in figure, they projected at the same line as shown in figure with different initial speed. The timer after which the horizontal distance between them become zero -

The correct option is D None of these
LetAngle of projection for A=30oAngle of projection for B=60oRequired condition:Distance traveled by A−Distance traveled by B=x[u3√]cos30o×t−ucos60o×t=x[u3√](3√2)×t−u(12)×t=xut[32−12]=xut=xt=xu