The figure below shows a bead sliding without friction along a curved wire in a

Question

The figure below shows a bead sliding without friction along a curved wire in a vertical plane. The bead slides starting from rest at position A on the frictionless wire. The direction of the gravitational field is in the direction (toward the bottom of the page). The acceleration at D is zero. The acceleration in the y-direction at H is ... zero. The velocity at D equals the velocity at B. The speed at D is ... the speed at B. The acceleration in the x direction at H is ... zero. The speed at H is ... the speed at D.

Explanation / Answer

there is always accelaration due to gravity in downward direction

hence the statement the accleration at D is zero is True

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the accelaration in the y-direction at H is not equal to zero

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the velocity at D equals the velocity at B is a Flase statement

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if both B and D are at the same height ,then the speed at D is equal to the speed at B

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since the accelaration due to gravity ia always in bottom direction.hence there will be no accelaration in the horizontal direction

hence the accelaration in the x-direction at H is equal to zero

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when we are going to heights the speed will be decreases

hence the speed at H is greater than the speed at D

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