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This mock test of Rigid Body Dynamics NAT Level - 2 for Physics helps you for every Physics entrance exam.
This contains 10 Multiple Choice Questions for Physics Rigid Body Dynamics NAT Level - 2 (mcq) to study with solutions a complete question bank.
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*Answer can only contain numeric values

QUESTION: 1

A carpet of mass ** M** and of inextensible material is rolled along its length in the form of a cylinder of radius

Solution:

ρ = density of carpet material

The correct answer is: 14

*Answer can only contain numeric values

QUESTION: 2

A thin uniform square plate ** ABCD** of side

Solution:

Let * b* and α

are linear according to centre of mass and angular according of the plane, just after ** BF** is cut

* mg* –

Taking torque about centre of mass

The correct answer is: 5

*Answer can only contain numeric values

QUESTION: 3

A uniform rod of length ** R** and mass

Solution:

Minimum velocity required by block ** m** to complete the motion in

conserving mechanical energy

conserving angular momentum w.r.t. * P* before and after collision.

The correct answer is: 15

*Answer can only contain numeric values

QUESTION: 4

A square plate of edge * a*/2 is cut out from a uniform square plate of edge

Solution:

Let *m*_{1} = mass of the square plate of slide *a*

and *m*_{2} = mass of the square of side ‘** a**/2’

(σ being the areal density)

and

The correct answer is: 0.1875

*Answer can only contain numeric values

QUESTION: 5

In the figure shown a block ** B** of mass

Solution:

The freely body diagrams of sphere A and Block B are as shown

Applying Newton’s law to block and sphere

** F** –

Since the sphere does not slip cover the block, therefore from constraint

solving equation (1), (2), (3) and (4)

we get the angular acceleration of sphere

The correct answer is: 10

*Answer can only contain numeric values

QUESTION: 6

A billiard ball at rest is struck horizontally one tenth of the diameter below the top. If ** P** be the linear impulse of the blow find the initial kinetic energy of the ball is Then

Solution:

Using momentum equation

using angular impulse-momentum equation. w.r.t. centre

Total K.E. = Translational K.E. + Rotational K.E.

The correct answer is: 13

*Answer can only contain numeric values

QUESTION: 7

A uniform rod of length 75 ** cm** hinged at one ends and is free to rotate in vertical plane. It is released from rest when rods is horizontal. When the rod becomes vertical, it is broken at mid-point and lower part now moves freely. The distance of centre of lower part from it again becomes vertical for the first time is

Solution:

The correct answer is: 5

*Answer can only contain numeric values

QUESTION: 8

Figure shows an arrangement of masses hanging from a ceiling. In equilibrium, each rod is horizontal, has negligible mass and extends three times as far to the right of the wire supporting it as to the left. If mass **m**_{4}, is 48 * kg* then mass

Solution:

The correct answer is: 1

*Answer can only contain numeric values

QUESTION: 9

A solid homogeneous cylinder of height * h* = 1

Solution:

* WRT* of belt, pseudo force

The correct answer is: 10

*Answer can only contain numeric values

QUESTION: 10

A small block of mass * m* is rigid attached at

Solution:

* f* = 4

* mg* –

from (1) and (2

⇒ 8

The correct answer is: 0.125

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