JEE Mains Physics 2002-2019 Solved Video Solutions
Consider the following two statements: A. Linear momentum of a system of particles is zero. B. Kinetic energy of a system of particles is zero. Then,
27
Oct
Consider the following two statements: A. Linear momentum of a system of particles is zero. B. Kinetic energy of a system of particles is zero. Then, Consider the following two statements: A. Linear momentum of a system of particles is zero. B. Kinetic energy of a system of particles is zero. Then October 27, 2020 [...]
A marble block of mass 2 kg lying on ice when given a velocity of 6m/s is stopped by friction in 10s. Then the coefficient of friction is
27
Oct
A marble block of mass 2 kg lying on ice when given a velocity of 6m/s is stopped by friction in 10s. Then the coefficient of friction is A marble block of mass 2 kg lying on ice when given a velocity of 6m/s is stopped by friction in 10s. Then the coefficient of friction [...]
Two masses m1=5kg and m2=4.8kg tied to a string are hanging over a light frictionless pulley. What is the acceleration of the masses when left free to move? (g = 9.8m/s^2)
27
Oct
Two masses m1=5kg and m2=4.8kg tied to a string are hanging over a light frictionless pulley. What is the acceleration of the masses when left free to move? (g = 9.8m/s^2) Two masses m1=5kg and m2=4.8kg tied to a string are hanging over a light frictionless pulley. What is the acceleration of the masses when [...]
An annular ring with inner and outer radii R1 and R2 is rolling without slipping with a uniform angular speed. The ratio of the forces experienced by the two particles situated on the inner and outer parts of the ring, F1/F2 is
27
Oct
An annular ring with inner and outer radii R1 and R2 is rolling without slipping with a uniform angular speed. The ratio of the forces experienced by the two particles situated on the inner and outer parts of the ring, F1/F2 is A body of mass m=10−2kg is moving in a medium and experiences a [...]
A particle of mass 0.3 kg subject to a force F=−kx with k=15N/m. What will be its initial acceleration if it is released from a point 20cm away from the origin?
27
Oct
A particle of mass 0.3 kg subject to a force F=−kx with k=15N/m. What will be its initial acceleration if it is released from a point 20cm away from the origin? A particle of mass 0.3 kg subject to a force F=−kx with k=15N/m. What will be its initial acceleration if it is released from [...]
A mass of M kg is suspended by a weightless string. The horizontal force that is required to displace it until the string makes an angle of 45^∘ with the initial vertical direction is
27
Oct
A mass of M kg is suspended by a weightless string. The horizontal force that is required to displace it until the string makes an angle of 45^∘ with the initial vertical direction is A mass of M kg is suspended by a weightless string. The horizontal force that is required to displace it until [...]
Given in figure are two blocks A and B of weight 20N and 100N, respectively. These are being pressed against a wall by a force F as shown. If the coefficient of friction between the blocks is 0.1 and between block B and the wall is 0.15, the frictional force applied by the wall on block B is:
27
Oct
Given in figure are two blocks A and B of weight 20N and 100N, respectively. These are being pressed against a wall by a force F as shown. If the coefficient of friction between the blocks is 0.1 and between block B and the wall is 0.15, the frictional force applied by the wall on [...]
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Given in figure are two blocks A and B of weight 20N and 100N ,
respectively. These are being pressed against a wall by a force F as shown. If the coefficient of friction between the blocks is 0.1 and between block B and the wall is 0.15 ,
the frictional force applied by the wall on block B is: ,
A block of mass is placed on a surface with a vertical cross section given by y=x^3/6. If the coefficient of friction is 0.5, the maximum height above the ground at which the block can be placed without slipping is:
27
Oct
A block of mass is placed on a surface with a vertical cross section given by y=x^3/6. If the coefficient of friction is 0.5, the maximum height above the ground at which the block can be placed without slipping is: A block of mass is placed on a surface with a vertical cross section given [...]
A point particle of mass m, moves long the uniformly rough track PQR as shown in figure. The coefficient of friction, between the particle and the rough track equals μ. The particle is released, from rest from the point P and it comes to rest at a point R. The energies, lost by the ball, over the parts, PQ and QR, of the track, are equal to each other, and no energy is lost when particle changes direction from PQ to QR. The value of the coefficient of friction μ and the distance x (=QR), are, respectively close to:
27
Oct
A point particle of mass m, moves long the uniformly rough track PQR as shown in figure. The coefficient of friction, between the particle and the rough track equals μ. The particle is released, from rest from the point P and it comes to rest at a point R. The energies, lost by the ball, [...]
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A point particle of mass m ,
and no energy is lost when particle changes direction from PQ to QR. The value of the coefficient of friction μ and the distance x (=QR) ,
are ,
are equal to each other ,
between the particle and the rough track equals μ. The particle is released ,
from rest from the point P and it comes to rest at a point R. The energies ,
lost by the ball ,
moves long the uniformly rough track PQR as shown in figure. The coefficient of friction ,
of the track ,
over the parts ,
PQ and QR ,
respectively close to: ,
A body of mass m=10−2kg is moving in a medium and experiences a frictional force F=−KV^2. Its initial speed is υ0=10ms^−2. If , after 10s, its energy is 1/8mυ^2 0, the value of k will be
27
Oct
A body of mass m=10−2kg is moving in a medium and experiences a frictional force F=−KV^2. Its initial speed is υ0=10ms^−2. If , after 10s, its energy is 1/8mυ^2 0, the value of k will be A body of mass m=10−2kg is moving in a medium and experiences a frictional force F=−KV^2. Its initial speed [...]