TyroCity

# grade11

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A man carrying a bucket of water on his hand always leans to the opposite side. Explain.

A man carrying a bucket of water on his hand always leans to the opposite side. Explain.

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Explain why a man carrying a load on his back leans forward?

Explain why a man carrying a load on his back leans forward?

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A dancer girl is rotating over a turntable with her arms outstretched. If she lowers her arms how does this affect her motion?

A dancer girl is rotating over a turntable with her arms outstretched. If she lowers her arms how does this affect her motion?

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During pregnancy, woman often develop back pains from leaning backward while walking. Why do they have to walk this way?

During pregnancy, woman often develop back pains from leaning backward while walking. Why do they have to walk this way?

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On what factors does the time period of a simple pendulum depend?

On what factors does the time period of a simple pendulum depend?

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Why is a horse more stable than a man?

Why is a horse more stable than a man?

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Suppose two forces act on rigid body and two forces have same magnitude but opposite direction. what conditions the body rotate?

Suppose two forces act on rigid body and two forces have same magnitude but opposite direction. what conditions the body rotate?

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Why a wrench of longer arm is preferred in comparison to a wrench of short arm?

Why a wrench of longer arm is preferred in comparison to a wrench of short arm?

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Why bridges are declared unsafe after a long use?

Why bridges are declared unsafe after a long use?

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How does ‘g’ at a point vary with distance from the centre of the earth? Where is the highest value of ‘g’? Explain.

How does ‘g’ at a point vary with distance from the centre of the earth? Where is the highest value of ‘g’? Explain.

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Is it possible for a solid body to have no matter at it centre of gravity?

Is it possible for a solid body to have no matter at it centre of gravity?

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Why an astronaut in a space capsule orbiting the earth experiences a feeling of weightlessness?

Why an astronaut in a space capsule orbiting the earth experiences a feeling of weightlessness?

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The weight of a body is less inside the earth than on the surface. Explain.

The weight of a body is less inside the earth than on the surface. Explain.

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What will happen to the value of ‘g’ if the earth stops rotating?

What will happen to the value of ‘g’ if the earth stops rotating?

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If the sun somehow collapsed to form a black hole, what effect would this event have on the orbit of the earth?

If the sun somehow collapsed to form a black hole, what effect would this event have on the orbit of the earth?

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