Chapter 5 – Rotational Motion
Sahay Sir > Question Answers > JEE Mains Physics 2002-2019 Solved Video Solutions > Chapter 5 - Rotational Motion
A slab is subjected to two forces F→1andF→2 of same magnitude F as shown in the figure . Force F→2 is in XY-plane while force F1 acts along z-axis at the point (2I→+3j→) .The moment of these forces about point O will be :
29
Nov
A slab is subjected to two forces F→1andF→2 of same magnitude F as shown in the figure . Force F→2 is in XY-plane while force F1 acts along z-axis at the point (2I→+3j→) .The moment of these forces about point O will be : A person of mass M is assuming that his centre of [...]
A rigid massless rod of length 3l has two masses attached at each end as shown in the figure. The rod is pivoted at point P on the horizontal axis (see figure). When released from initial horizontal position, its instantaneous angular acceleration will be :
29
Nov
A rigid massless rod of length 3l has two masses attached at each end as shown in the figure. The rod is pivoted at point P on the horizontal axis (see figure). When released from initial horizontal position, its instantaneous angular acceleration will be : A person of mass M is assuming that his centre [...]
Two identical spherical balls of mass M and radius R each are stuck on two ends of a rod of length 2R and mass M (see figure). The moment of inertia of the system about the axis passing perpendicularly through the centre of the rod is :
29
Nov
Two identical spherical balls of mass M and radius R each are stuck on two ends of a rod of length 2R and mass M (see figure). The moment of inertia of the system about the axis passing perpendicularly through the centre of the rod is : A person of mass M is assuming that [...]
A homogeneous solid cylindrical roller of radius R and mass M is pulled on a cricket pitch by a horizontal force. Assuming rolling without slipping, angular acceleration of the cylinder is:
29
Nov
A homogeneous solid cylindrical roller of radius R and mass M is pulled on a cricket pitch by a horizontal force. Assuming rolling without slipping, angular acceleration of the cylinder is: A homogeneous solid cylindrical roller of radius R and mass M is pulled on a cricket pitch by a horizontal force. Assuming rolling without [...]
A rod of length 50cm is pivoted at one end. It is raised such that if makes an angle of 30° from the horizontal as shown and released from rest. Its angular speed when it passes through the horizontal (in rad s^−1) will be (g=10ms^−2)
29
Nov
A rod of length 50cm is pivoted at one end. It is raised such that if makes an angle of 30° from the horizontal as shown and released from rest. Its angular speed when it passes through the horizontal (in rad s^−1) will be (g=10ms^−2) A person of mass M is assuming that his centre [...]
An L-shaped object, made of thin rods of uniform mass density, is suspended with a string as shown in figure. If AB=BD, and the angle made by AB with downward vertical is θ, then :
29
Nov
An L-shaped object, made of thin rods of uniform mass density, is suspended with a string as shown in figure. If AB=BD, and the angle made by AB with downward vertical is θ, then : An L-shaped object and the angle made by AB with downward vertical is θ is suspended with a string as [...]
A person of mass M is, sitting on a swing of length L and swinging with an angular amplitude θ0. If the person stands up when the swing passes through its lowest point, the work done by him, assuming that his centre of mass moves by a distance ℓ(ℓ
29
Nov
A person of mass M is, sitting on a swing of length L and swinging with an angular amplitude θ0. If the person stands up when the swing passes through its lowest point, the work done by him, assuming that his centre of mass moves by a distance ℓ(ℓ A person of mass M is [...]
A uniform rod of length ℓ is being rotated in a horizontal plane with a constant angular speed about an axis passing through one of its ends. If the tension generated in the rod due to rotation is T(x) at a distance x from the axis, then which of the following graphs depicts it most closely?
29
Nov
A uniform rod of length ℓ is being rotated in a horizontal plane with a constant angular speed about an axis passing through one of its ends. If the tension generated in the rod due to rotation is T(x) at a distance x from the axis, then which of the following graphs depicts it most [...]
Posted in:
Chapter 2 - Kinematics
,
Chapter 5 - Rotational Motion
,
JEE Mains Physics 2002-2019 Solved Video Solutions
,
Tags:
A ball rests upon a flat piece of paper on a table top. The paper is pulled horizontally but quickly towards right as shown. Relative to its initial position with respect to the table ,
i.e. in the direction in which the paper is pulled. Here ,
i.e. to the left if there is a friction between the paper and the ball. c) moves forward ,
the ball a) remains stationary if there is no friction between the paper and the ball. b) moves to the left and starts rolling backwards ,
the correct statement/s is /are.......... ,
Two identical particles move towards each other with velocity 2v and v respectively. The velocity of centre of mass is-
27
Oct
Two identical particles move towards each other with velocity 2v and v respectively. The velocity of centre of mass is- Two identical particles move towards each other with velocity 2v and v respectively. The velocity of centre of mass is- October 27, 2020 Category: Chapter 5 - Rotational Motion , JEE Mains Physics 2002-2019 Solved [...]
A solid sphere, a hollow sphere and a ring are released from top of an inclined plane (frictionless) so that they slide down the plane. Then maximum acceleration down the plane is for (no rolling) :
27
Oct
A solid sphere, a hollow sphere and a ring are released from top of an inclined plane (frictionless) so that they slide down the plane. Then maximum acceleration down the plane is for (no rolling) : a hollow sphere and a ring are released from top of an inclined plane (frictionless) so that they slide [...]