Center of Mass (KVPY Stream-SA (Class 11) Physics): Questions 3 - 4 of 4

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Question number: 3

» Center of Mass » Centre of Mass of a Rigid Body

MCQ▾

Question

A hollow tilted cylindrical vessel of negligible mass rest is on a horizontal plane as shown. The diameter of the base is a and the side of the cylinder makes an angle θ with the horizontal. Water is then slowly poured into the cylinder. The cylinder topples over when the water reaches a certain height h, given by,

A hollow tilted cylindrical vessel

A Hollow Tilted Cylindrical Vessel

In figure a hollow tilted cylindrical vessel is shown. The diameter of the base is a and the side of the cylinder makes an angle θ with the horizontal.

Choices

Choice (4) Response

a.

h=atanθ

b.

h=2atanθ

c.

h=a2tanθ

d.

h=atan2θ

Question number: 4

» Center of Mass » Centre of Mass of a Rigid Body

MCQ▾

Question

A block moves in a parabolic path explodes during its flight. The center of the mass of the block will move,

Choices

Choice (4) Response

a.

In horizontal direction

b.

Along the tangent to the original parabolic path.

c.

Along the same parabolic path in which the original shell was moving

d.

Vertically downward

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