Physics-
General
Easy
Question
In the diagram if 
and 
are acceleration of masses m1 , m2 and m3 and T1 , T2 and T3 are the tensions in the strings, then
The correct answer is:
Related Questions to study
physics-
A block of unknown mass is at rest on a rough, horizontal surface. A force F is applied to the block. The graph in the figure shows the acceleration of the block with respect to the applied force. The mass of the block is:
A block of unknown mass is at rest on a rough, horizontal surface. A force F is applied to the block. The graph in the figure shows the acceleration of the block with respect to the applied force. The mass of the block is:
physics-General
physics-
Two blocks are connected by a spring. The combination is suspended, at rest, from a string attatched to the ceiling, as shown in the figure. The string breaks suddenly. Immediately after the string breaks, what is the initial downward acceleration of the upper block of mass 2m ?
Two blocks are connected by a spring. The combination is suspended, at rest, from a string attatched to the ceiling, as shown in the figure. The string breaks suddenly. Immediately after the string breaks, what is the initial downward acceleration of the upper block of mass 2m ?
physics-General
physics-
A block A kept on a rough plate (OO1) with coefficient of static friction 
= 0.75 & coefficient of kinetic friction 
= 0.5. The plate is leaning with horizontal at an angle q = tan–1() If the plate is further tilted slightly & the acceleration of block will be
A block A kept on a rough plate (OO1) with coefficient of static friction = 0.75 & coefficient of kinetic friction = 0.5. The plate is leaning with horizontal at an angle q = tan–1() If the plate is further tilted slightly & the acceleration of block will be
physics-General
physics-
Two identical blocks of weight W are placed one on top of the other shown in figure. The upper block is tied to the wall. The coefficient of static friction between B and ground is m and friction between A and B is absent when F = mw force is applied on the lower block as shown. The tension in the string will be
Two identical blocks of weight W are placed one on top of the other shown in figure. The upper block is tied to the wall. The coefficient of static friction between B and ground is m and friction between A and B is absent when F = mw force is applied on the lower block as shown. The tension in the string will be
physics-General
physics-
The K.E. of a body moving along a straight line varies with time as shown in the figure. The force acting on the body is
The K.E. of a body moving along a straight line varies with time as shown in the figure. The force acting on the body is
physics-General
physics-
A U tube of cross section A and 2A contains liquid of density 
. Initially, the liquid in the two arms are held with a level difference h as shown in figure. After being released, the levels equalize after some time. The work done by gravity forces on the liquid in the process is
A U tube of cross section A and 2A contains liquid of density . Initially, the liquid in the two arms are held with a level difference h as shown in figure. After being released, the levels equalize after some time. The work done by gravity forces on the liquid in the process is
physics-General
physics-
A simple pendulum is vibrating with an angular amplitude of 90
as shown in fig. For what value of 
(angle between string and vertical) during its motion, the total acceleration is directly horizontally?
A simple pendulum is vibrating with an angular amplitude of 90 as shown in fig. For what value of (angle between string and vertical) during its motion, the total acceleration is directly horizontally?
physics-General
physics-
A particle of mass 4m which is at rest explodes into four equal fragments. All 4 fragments are scattered in the same horizontal plane. Three fragments are found to move with velocity V each as shown in the fig. The total energy released in the process of explosion is
A particle of mass 4m which is at rest explodes into four equal fragments. All 4 fragments are scattered in the same horizontal plane. Three fragments are found to move with velocity V each as shown in the fig. The total energy released in the process of explosion is
physics-General
physics-
A 5000 kg rocket is set of vertical firing. The relative speed of burnt gas is 800 ms–1 To give an initial upwards acceleration of 20 ms–2, the amount of gas ejected per second to supply the needed thrust will be
A 5000 kg rocket is set of vertical firing. The relative speed of burnt gas is 800 ms–1 To give an initial upwards acceleration of 20 ms–2, the amount of gas ejected per second to supply the needed thrust will be
physics-General
physics-
As shown above, a ball of mass m, suspended on the end of a wire, is released from height h and collides elastically, when it is at its lowest point, with a block of mass 2m at rest on a frictionless surface. After the collision, the ball rises to a final height equal to
As shown above, a ball of mass m, suspended on the end of a wire, is released from height h and collides elastically, when it is at its lowest point, with a block of mass 2m at rest on a frictionless surface. After the collision, the ball rises to a final height equal to
physics-General
physics-
Two balls marked 1 and 2 of the same mass m and a third ball marked 3 of mass M are arranged over a smooth horizontal surface as shown in figure. Ball 1 moves with a velocity v1 towards ball 2 and 3. All collisions are assumed to be elastic.
If M > m, the number of collisions between the balls will be:
Two balls marked 1 and 2 of the same mass m and a third ball marked 3 of mass M are arranged over a smooth horizontal surface as shown in figure. Ball 1 moves with a velocity v1 towards ball 2 and 3. All collisions are assumed to be elastic.
If M > m, the number of collisions between the balls will be:
physics-General
physics-
Two balls marked 1 and 2 of the same mass m and a third ball marked 3 of mass M are arranged over a smooth horizontal surface as shown in figure. Ball 1 moves with a velocity v1 towards ball 2 and 3. All collisions are assumed to be elastic.
If M < m, the number of collisions between the balls will be:
Two balls marked 1 and 2 of the same mass m and a third ball marked 3 of mass M are arranged over a smooth horizontal surface as shown in figure. Ball 1 moves with a velocity v1 towards ball 2 and 3. All collisions are assumed to be elastic.
If M < m, the number of collisions between the balls will be:
physics-General
physics-
A particle of mass m is moving along the x-axis with speed v when it collides with a particle of mass 2m initially at rest. After the collisions, the first particle has come to rest, and the second particle has split into two equal-mass pieces that move at equal angles 
> 0 with the x-axis, as shown in the figure. Which of the following statements correctly describes the speeds of the two pieces?
A particle of mass m is moving along the x-axis with speed v when it collides with a particle of mass 2m initially at rest. After the collisions, the first particle has come to rest, and the second particle has split into two equal-mass pieces that move at equal angles > 0 with the x-axis, as shown in the figure. Which of the following statements correctly describes the speeds of the two pieces?
physics-General
physics-
A rigid horizontal smooth rod AB of mass 0.75 kg and length 40 cm can rotate freely about a fixed vertical axis through its mid point O. Two rings each of mass 1 kg are initially at rest at a distance of 10 cm from O on either side of the rod. The rod is set in rotation with an angular velocity of 30 radians per second. The velocity of each ring along the length of the rod in m/s then they reach the ends of the rod is
A rigid horizontal smooth rod AB of mass 0.75 kg and length 40 cm can rotate freely about a fixed vertical axis through its mid point O. Two rings each of mass 1 kg are initially at rest at a distance of 10 cm from O on either side of the rod. The rod is set in rotation with an angular velocity of 30 radians per second. The velocity of each ring along the length of the rod in m/s then they reach the ends of the rod is
physics-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
