Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A railway flat car has an artillery gun installed on it. The combined system has a mass M and moves with a velocity V. The barrel of the gun makes an angle a with the horizontal. A shell of mass m leaves the barrel at a speed v relative to the barrel. The speed of the flat car so that it may stop after the firing is
21
Sep
A railway flat car has an artillery gun installed on it. The combined system has a mass M and moves with a velocity V. The barrel of the gun makes an angle a with the horizontal. A shell of mass m leaves the barrel at a speed v relative to the barrel. The speed of [...]
A ball of mass m is projected with a speed v into the barrel of a spring gun of mass M initially at rest lying on a frictionless surface. The mass sticks in the barrel at the point of maximum compression in the spring. The fraction of kinetic energy of the ball stored in the spring is
21
Sep
A ball of mass m is projected with a speed v into the barrel of a spring gun of mass M initially at rest lying on a frictionless surface. The mass sticks in the barrel at the point of maximum compression in the spring. The fraction of kinetic energy of the ball stored in the [...]
A ball kept in a closed box moves in the box making collisions with the walls. The box is kept on a smooth surface. The velocity of the centre of mass
21
Sep
A ball kept in a closed box moves in the box making collisions with the walls. The box is kept on a smooth surface. The velocity of the centre of mass A ball kept in a closed box moves in the box making collisions with the walls. The box is kept on a smooth surface. [...]
In a system of particles 8 kg mass is subjected to a force of 16 N along + ve x-axis and another 8 kg is subjected to a force of 8 N along + ve y-axis. The magnitude of acceleration of centre of mass and the angle made by it with x-axis are given respectively by
21
Sep
In a system of particles 8 kg mass is subjected to a force of 16 N along + ve x-axis and another 8 kg is subjected to a force of 8 N along + ve y-axis. The magnitude of acceleration of centre of mass and the angle made by it with x-axis are given respectively [...]
On an inclined plane two particles A and B are projected with same speed at the same angle with the horizontal, particle A down and particle B up the plane. If the ratio of time of flight of A and B is
21
Sep
On an inclined plane two particles A and B are projected with same speed at the same angle with the horizontal, particle A down and particle B up the plane. If the ratio of time of flight of A and B is On an inclined plane two particles A and B are projected with same [...]
Two stones A and B are projected simultaneously from the top of a 100 m high tower. Stone B is projected horizontally with speed 10 m/s, and stone A is dropped from the tower. Find out the following: (a) Time of flight of the two stone.
21
Sep
Two stones A and B are projected simultaneously from the top of a 100 m high tower. Stone B is projected horizontally with speed 10 m/s, and stone A is dropped from the tower. Find out the following: (a) Time of flight of the two stone. and stone A is dropped from the tower. Find [...]
Two paper screens A and B are separated by a distance of 100 m. A bullet pierces A and then B. The hole in B is 10 cm below the hole in A. If the bullet is travelling horizontally at the time of hitting the screen A,
21
Sep
Two paper screens A and B are separated by a distance of 100 m. A bullet pierces A and then B. The hole in B is 10 cm below the hole in A. If the bullet is travelling horizontally at the time of hitting the screen A, An object is thrown between two tall buildings [...]
A bullet is fired from the bottom of the inclined plane at angle theta = 37 with the inclined plane. The angle of incline is 30 with the horizontal. Find the (a) position of the maximum height of the bullet from the inclined plane (b) time of light
21
Sep
A bullet is fired from the bottom of the inclined plane at angle theta = 37 with the inclined plane. The angle of incline is 30 with the horizontal. Find the (a) position of the maximum height of the bullet from the inclined plane (b) time of light An object is thrown between two tall [...]
A fighter plane moving with a speed of 50 root 2 m/s upward at an angle of 45 with the vertical releases a bomb when it was at a height 1000 m from ground. Find a. the time of flight b. the maximum
21
Sep
A fighter plane moving with a speed of 50 root 2 m/s upward at an angle of 45 with the vertical releases a bomb when it was at a height 1000 m from ground. Find a. the time of flight b. the maximum A fighter plane moving with a speed of 50 root 2 m/s [...]
Two blocks of masses 5 kg and 2 kg are placed on a frictionless surface and connected by a spring. An external kick gives a velocity of 14m/s to the heavier block in the direction of lighter one. The magnitudes of velocities of two blocks in the centre of mass frame after the kick are, respectively,
21
Sep
Two blocks of masses 5 kg and 2 kg are placed on a frictionless surface and connected by a spring. An external kick gives a velocity of 14m/s to the heavier block in the direction of lighter one. The magnitudes of velocities of two blocks in the centre of mass frame after the kick are, [...]