Physics-
General
Easy
Question
A particle describes a horizontal circle in a conical funnel whose inner surface is smooth with speed of 
. What is the height of the plane of circle from vertex of the funnel
The correct answer is:
The particle is moving in circular path
From the figure, 
From equation (i) and (ii) we get
but 
Related Questions to study
Physics-
Three identical particles are joined together by a thread as shown in figure. All the three particles are moving in a horizontal plane. If the velocity of the outermost particle is 
, then the ratio of tensions in the three sections of the string is
Three identical particles are joined together by a thread as shown in figure. All the three particles are moving in a horizontal plane. If the velocity of the outermost particle is , then the ratio of tensions in the three sections of the string isPhysics-General
Physics-General
Physics-
Figure shows a body of mass 
moving with a uniform speed 
along a circle of radius 
. The change in velocity in going from 
to 
is
Figure shows a body of mass moving with a uniform speed along a circle of radius . The change in velocity in going from to is
Physics-General
Physics-
A ball of mass
kg is attached to the end of a string having length 
0.5 m. The ball is rotated on a horizontal circular path about vertical axis. The maximum tension that the string can bear is 324 N. The maximum possible value of angular velocity of ball (in rad/s) is
A ball of mass kg is attached to the end of a string having length 0.5 m. The ball is rotated on a horizontal circular path about vertical axis. The maximum tension that the string can bear is 324 N. The maximum possible value of angular velocity of ball (in rad/s) isPhysics-General
Physics-General
Physics-
Given 
. The angle which 
makes with 
is
Given . The angle which makes with is
Physics-General
Physics-
The wheel of toy car rotates about axis. It slows down from 400 rps to 200 rps in 2s. Then its angular retardation in 
is
The wheel of toy car rotates about axis. It slows down from 400 rps to 200 rps in 2s. Then its angular retardation in is
Physics-General
Physics-
A body of mass 2 kg attached to a string is whirled in a vertical circle of radius 5 m. The minimum speed of the body at lowest point so that the cord does not slacken even at the highest point is
A body of mass 2 kg attached to a string is whirled in a vertical circle of radius 5 m. The minimum speed of the body at lowest point so that the cord does not slacken even at the highest point is
Physics-General
Physics-
A particle of mass 
is executing uniform circular motion on a path of radius 
If 
is the magnitude of its linear momentum. The radial force acting on the particle is
A particle of mass is executing uniform circular motion on a path of radius If is the magnitude of its linear momentum. The radial force acting on the particle is
Physics-General
Physics-
The angle between the 
-axis and the vector 
is
The angle between the -axis and the vector is
Physics-General
Physics-
A body of mass moves in a circular path with uniform angular velocity. The motion of the body has constant
A body of mass moves in a circular path with uniform angular velocity. The motion of the body has constant
Physics-General
Physics-
If the magnitudes of scalar and vector products of two vectors and are 6 and 
respectively, then the angle between two vectors is
If the magnitudes of scalar and vector products of two vectors and are 6 and respectively, then the angle between two vectors is
Physics-General
Physics-
The horizontal range and the maximum height of a projectile are equal. The angle of projection of the projectile is
The horizontal range and the maximum height of a projectile are equal. The angle of projection of the projectile is
Physics-General
Physics-
A projectile is fired at an angle of 
to the horizontal such that the vertical component of its initial velocity is 
. Its time of flight is 
. Its velocity at 
has a magnitude of nearly
A projectile is fired at an angle of to the horizontal such that the vertical component of its initial velocity is . Its time of flight is . Its velocity at has a magnitude of nearly
Physics-General
Physics-
What should be the angular velocity of earth so that a body on its equator is weightless?
What should be the angular velocity of earth so that a body on its equator is weightless?
Physics-General
Physics-
A body of mass hangs at one end of a string of length 
, the other end of which is fixed. It is given a horizontal velocity so that the string would just reach where it makes an angle of 
with the vertical. The tension in the string at mean position is
A body of mass hangs at one end of a string of length , the other end of which is fixed. It is given a horizontal velocity so that the string would just reach where it makes an angle of with the vertical. The tension in the string at mean position is
Physics-General
Physics-
A car sometimes overturns while taking a turn. When it overturns, it is
A car sometimes overturns while taking a turn. When it overturns, it is
Physics-General
