JEE Main 2019 (Online) 8th April Morning Slot | Rotational Motion Question 114 | Physics

JEE Main 2019 (Online) 8th April Morning Slot

MCQ (Single Correct Answer)

-1

Four particles A, B, C and D with masses m_A = m, m_B = 2m, m_C = 3m and m_D = 4m are at the corners of a square. They have accelerations of equal magnitude with directions as shown. The acceleration of the centre of mass of the particles is : JEE Main 2019 (Online) 8th April Morning Slot Physics - Rotational Motion Question 116 English

JEE Main 2019 (Online) 8th April Morning Slot Physics - Rotational Motion Question 116 English

$${a \over 5}\left( {\mathop i\limits^ \wedge + \mathop j\limits^ \wedge } \right)$$

$${a \over 5}\left( {\mathop i\limits^ \wedge - \mathop j\limits^ \wedge } \right)$$

$${a }\left( {\mathop i\limits^ \wedge + \mathop j\limits^ \wedge } \right)$$

Zero

JEE Main 2019 (Online) 8th April Morning Slot

MCQ (Single Correct Answer)

-1

A thin circular plate of mass M and radius R has its density varying as $$\rho $$(r) = $$\rho $$₀r with $$\rho $$₀ as constant and r is the distance from its centre. The moment of Inertia of the circular plate about an axis perpendicular to the plate and passing through its edge is I = aMR². The value of the coefficient a is :

$${1 \over 2}$$

$${3 \over 2}$$

$${8 \over 5}$$

$${3 \over 5}$$

JEE Main 2019 (Online) 12th January Evening Slot

MCQ (Single Correct Answer)

-1

The moment of inertia of a solid sphere, about an axis parallel to its diameter and at a distance of x from it, is 'I(x)'. Which one of the graphs represents the variation of I(x) with x correctly ?

JEE Main 2019 (Online) 12th January Evening Slot Physics - Rotational Motion Question 119 English Option 1

JEE Main 2019 (Online) 12th January Evening Slot Physics - Rotational Motion Question 119 English Option 2

JEE Main 2019 (Online) 12th January Evening Slot

MCQ (Single Correct Answer)

-1

Two particles A, B are moving on two concentric circles of radii R₁ and R₂ with equal angular speed $$\omega $$. At t = 0, their positions and direction of motion are shown in the figure. :

JEE Main 2019 (Online) 12th January Evening Slot Physics - Rotational Motion Question 117 English