Center of Mass (KVPY Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics): Questions 4 - 5 of 5

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Question number: 4

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

Appeared in Year: 2015

MCQ▾

Question

Two uniform plates of the same thickness and area but of different materials, one shaped like an isosceles triangle and the other shaped like a rectangle are joined together to form a composite body as shown in the figure. If the centre of mass of the composite body is located at the midpoint of their common side, the ratio between masses of the triangle to that of the rectangle is,

Two uniform plates of different metals joined

Two Uniform Plates of Different Metals Joined

In figure two uniform plates of the same thickness and area but of different materials, one shaped like an isosceles triangle and the other shaped like a rectangle are joined together to form a composite body. Also the centre of mass of the composite body is located at the midpoint of their common side.

Choices

Choice (4) Response

a.

2: 1

b.

4: 3

c.

1: 1

d.

3: 4

Question number: 5

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

Appeared in Year: 2015

MCQ▾

Question

The distance between the vertex and the center of mass of a uniform solid planar circular segment of angular size θ and radius R is given by.

A uniform solid planar circular segment.

A Uniform Solid Planar Circular Segment.

In figure a uniform solid planar circular segment of angular size (theta) and radius R is shown.

Choices

Choice (4) Response

a.

43Rsin(θ2)θ

b.

23Rcos(θ)

c.

43Rcos(θ2)

d.

Rsin(θ2)θ

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