A ladder is sliding on a wall- Fig 1 is an intermediate stage before it hits the ground- The value a 2- b 2 depends onA- Speed at which the ladder is fallingB- Height of the end which is leaning on the wall from ground-C- a 2- b 2 is a constant-D- The position of the mid-point of the ladder-

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Standard X

Physics

Torque

A ladder is s...

Question

A ladder is sliding on a wall. Fig 1 is an intermediate stage before it hits the ground. The value $a^{2} + b^{2}$ depends on

Speed at which the ladder is falling

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Height of the end which is leaning on the wall from ground.

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a²+b² is a constant.

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The position of the mid-point of the ladder.

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Solution

The correct option is C
a²+b² is a constant.

We know that the length of the ladder remains the same.

$\Rightarrow \sqrt{a^{2} + b^{2}}$ remains constant.
$\Rightarrow a^{2} + b^{2}$ is a constant.

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A ladder is sliding on a wall. Fig 1 is an intermediate stage before it hits the ground. The value a2+b2 depends on

The correct option is C a2+b2 is a constant. We know that the length of the ladder remains the same. ⇒√a2+b2 remains constant. ⇒a2+b2 is a constant.

A ladder is sliding on a wall. Fig 1 is an intermediate stage before it hits the ground. The value $a^{2} + b^{2}$ depends on

The correct option is C
a²+b² is a constant.

We know that the length of the ladder remains the same.

$\Rightarrow \sqrt{a^{2} + b^{2}}$ remains constant.
$\Rightarrow a^{2} + b^{2}$ is a constant.