Physics-
General
Easy
Question
A ball of mass ‘m’ is rotating in a circle of radius ‘r’ with speed v inside a smooth cone as shown in figure. Let N be the normal reaction on the ball by the cone, then choose the wrong option. =
- none of these
The correct answer is:
Related Questions to study
Maths-
Statement-I : The points with position vectors 
are collinear if 2
= 0
Statement II : The points with position vectors 
are collinear if 
Statement-I : The points with position vectors are collinear if 2 = 0
Statement II : The points with position vectors are collinear if
Maths-General
Maths-
The set of values of m for which the vectors 
are coplanar is
The set of values of m for which the vectors are coplanar is
Maths-General
Maths-
If a vector 
of magnitude 50 is collinear with vector 
and makes an acute angle with positive z-axis then
If a vector of magnitude 50 is collinear with vector and makes an acute angle with positive z-axis then
Maths-General
Maths-
Three non zero non-collinear vectors are such that 
is collinear with 
while 
is collinear with . Then 
Three non zero non-collinear vectors are such that is collinear with while is collinear with . Then
Maths-General
Maths-
P is the point of intersection of the diagonals of the parallelogram ABCD. If S is any point in the space and 
then 
=
P is the point of intersection of the diagonals of the parallelogram ABCD. If S is any point in the space and then =
Maths-General
Maths-
Two sides of a parallelogram are given by 2i+4j-2k and i+2j then lengths of diagonals are
Two sides of a parallelogram are given by 2i+4j-2k and i+2j then lengths of diagonals are
Maths-General
Maths-
Equation to a line parallel to the vector 2i-j+k and passing through the point i+j+k
Equation to a line parallel to the vector 2i-j+k and passing through the point i+j+k
Maths-General
Physics-
A particle parallel to x-axis as shown in the figure such that at all instant the y-axis component of it's position vector is constant and is equal to 'b'. The angular velocity of the particle about the origin is
A particle parallel to x-axis as shown in the figure such that at all instant the y-axis component of it's position vector is constant and is equal to 'b'. The angular velocity of the particle about the origin is
Physics-General
Physics-
A container is filled with water at 4°C. At one time the temperature is increased by few degrees above 4°C and at another time it is decreased by few degrees below 4°C. One shall observe that:
A container is filled with water at 4°C. At one time the temperature is increased by few degrees above 4°C and at another time it is decreased by few degrees below 4°C. One shall observe that:
Physics-General
Physics-
A block of mass 'm' is released from rest at point A. The compression in spring, when the speed of block is maximum
A block of mass 'm' is released from rest at point A. The compression in spring, when the speed of block is maximum
Physics-General
Physics-
A block of mass m sliding down an incline at constant speed is initially at a height h above the ground, as shown in the figure above. The coefficient of kinetic If the mass continues to slidemfriction between the mass and the incline is down the incline at a constant speed, how much energy is dissipated by friction by the time the mass reaches the bottom of the incline?
A block of mass m sliding down an incline at constant speed is initially at a height h above the ground, as shown in the figure above. The coefficient of kinetic If the mass continues to slidemfriction between the mass and the incline is down the incline at a constant speed, how much energy is dissipated by friction by the time the mass reaches the bottom of the incline?
Physics-General
Physics-
Two particles starts moving on the same circle of radius 2 m, from the same point P at t = 0, with constant tangential accelerations = 2 m/s2 and 6 m/s2 , clockwise and anticlockwise, respectively. The point where they meet for the first time is Q. The smaller angle subtended by PQ at center of circle is
Two particles starts moving on the same circle of radius 2 m, from the same point P at t = 0, with constant tangential accelerations = 2 m/s2 and 6 m/s2 , clockwise and anticlockwise, respectively. The point where they meet for the first time is Q. The smaller angle subtended by PQ at center of circle is
Physics-General
Physics-
A block of mass m is sitting on a rotating frictionless wedge. The 
around the axis shown in figure. rotates with constant angular velocity
A block of mass m is sitting on a rotating frictionless wedge. The around the axis shown in figure. rotates with constant angular velocity
Physics-General
Physics-
An object moves counter-clockwise along the circular path shown below. As it moves along the path its acceleration vector continuously points towards point S. The object
An object moves counter-clockwise along the circular path shown below. As it moves along the path its acceleration vector continuously points towards point S. The object
Physics-General
Physics-
For the two blocks initially at rest under constant ext. forces of mass1 kg and 2kg shown, 
.Which of the following is correct
For the two blocks initially at rest under constant ext. forces of mass1 kg and 2kg shown, .Which of the following is correct
Physics-General
