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A ball is thrown horizontally from the top of a tower and strikes the ground in 3 s at an angle of 30 with the verticle.
21
Sep
A ball is thrown horizontally from the top of a tower and strikes the ground in 3 s at an angle of 30 with the verticle. A ball is thrown horizontally from the top of a tower and strikes the ground in 3 s at an angle of 30 with the verticle. September 21, 2020 [...]
Two guns are situated at the top of a hill firing the shots at the same speed. One gun fires the shot horizontally and other gun fires the shot at angle of 60 with the horizontal. The two shots collide in air.
21
Sep
Two guns are situated at the top of a hill firing the shots at the same speed. One gun fires the shot horizontally and other gun fires the shot at angle of 60 with the horizontal. The two shots collide in air. and stone A is dropped from the tower. Find out the following: (a) [...]
A boy is running along positive x-axis with 8 m/s. While running he manages to throw a stone with velocity 12 m/s at an angle 30 with verticle. Find the speed of the stone at the highest point
21
Sep
A boy is running along positive x-axis with 8 m/s. While running he manages to throw a stone with velocity 12 m/s at an angle 30 with verticle. Find the speed of the stone at the highest point A boy is running along positive x-axis with 8 m/s. While running he manages to throw a [...]
The horizontal range (R) of a projectile becomes (R + 2H) from R due to a wind in horizontal direction. Here H is the maximum height reached by the projectile. What constant horizontal acceleration is imparted
21
Sep
The horizontal range (R) of a projectile becomes (R + 2H) from R due to a wind in horizontal direction. Here H is the maximum height reached by the projectile. What constant horizontal acceleration is imparted and stone A is dropped from the tower. Find out the following: (a) Time of flight of the two [...]
Two blocks m1 and m2 are pulled on a smooth horizontal surface, and are joined together with a spring of stiffness k as shown in Fig. Suddenly, block m2 receives a horizontal velocity v0, then the maximum extension xm in the spring is
21
Sep
Two blocks m1 and m2 are pulled on a smooth horizontal surface, and are joined together with a spring of stiffness k as shown in Fig. Suddenly, block m2 receives a horizontal velocity v0, then the maximum extension xm in the spring is and are joined together with a spring of stiffness k as shown [...]
A particle is projected with velocity u on an inclined plane at an angle theta with the plane. If the particle lands on the plane at right angle its time of flight is u cosec theta / 2g. Find the angle of inclination of the plane
21
Sep
A particle is projected with velocity u on an inclined plane at an angle theta with the plane. If the particle lands on the plane at right angle its time of flight is u cosec theta / 2g. Find the angle of inclination of the plane and stone A is dropped from the tower. Find [...]
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 [...]