Physics-
General
Easy
Question
In the arrangement shown, all surfaces are frictionless. The rod R is constrained to move vertically. The vertical acceleration of R is 
and the horizontal acceleration of the wedge W is 
The ratio / is equal to
- sin
- cos
- tan
- cot
The correct answer is: cos
Related Questions to study
physics-
In the figure shown, A & B are free to move. All the surfaces are smooth. 
In the figure shown, A & B are free to move. All the surfaces are smooth.
physics-General
physics-
In the figure shown man is balanced by counter weight of same mass. He starts to climb the rope with an accelerator of 
w.r.t. rope. The time after which he reaches the pulley will be
In the figure shown man is balanced by counter weight of same mass. He starts to climb the rope with an accelerator of w.r.t. rope. The time after which he reaches the pulley will be
physics-General
physics-
In the fig. at the free end of the light string, a force F is appled to keep the suspended mass of 18 kg at rest. Assuming pulley is light then the force exerted by the ceiling on the system is:
In the fig. at the free end of the light string, a force F is appled to keep the suspended mass of 18 kg at rest. Assuming pulley is light then the force exerted by the ceiling on the system is:
physics-General
physics-
System is shown in figure. All the surfaces are smooth. Rod is moved by external agent with acceleration 9 m/s2 vertically downwards. Force exerted on the rod by the wedge will be:
System is shown in figure. All the surfaces are smooth. Rod is moved by external agent with acceleration 9 m/s2 vertically downwards. Force exerted on the rod by the wedge will be:
physics-General
physics-
Find the time in which 2 kg mass will strikes the pulley after being released from rest.
Find the time in which 2 kg mass will strikes the pulley after being released from rest.
physics-General
physics-
Two blocks A & B with mass 4 kg and 6 kg respectively are connected by a stretched spring of negligible mass as in figure . When the two blocks are released simultaneously the initial acceleration of B is 1.5 m/s2 westward . The acceleration of A is :
Two blocks A & B with mass 4 kg and 6 kg respectively are connected by a stretched spring of negligible mass as in figure . When the two blocks are released simultaneously the initial acceleration of B is 1.5 m/s2 westward . The acceleration of A is :
physics-General
physics-
Three blocks are connected as shown in the figure, on a horizontal frictionless table and pulled to the right with a force at 60N. if 
= 10kg, 
= 20kg and 
= 30 kg then the value of 
is
Three blocks are connected as shown in the figure, on a horizontal frictionless table and pulled to the right with a force at 60N. if = 10kg, = 20kg and = 30 kg then the value of is
physics-General
physics-
Fig shows two pulley arrangements for lifting a mass m. In
a) the mass is lifted by attaching a mass 2m while in
b) the mass is lifted by pulling the other end with a downward force F=2mg, If 
and 
are the accelerations of the two masses then
Fig shows two pulley arrangements for lifting a mass m. In
a) the mass is lifted by attaching a mass 2m while in
b) the mass is lifted by pulling the other end with a downward force F=2mg, If and are the accelerations of the two masses then
physics-General
physics-
Three equal weights of mass 2kg each are hanging by a string passing over a fixed pulley. The tension in the string (in N) connecting B and C is
Three equal weights of mass 2kg each are hanging by a string passing over a fixed pulley. The tension in the string (in N) connecting B and C is
physics-General
physics-
A ball is projected from point A with velocity 10m/sec. perpendicular to the inclined plane as in figure. Range of the ball on the incline is
A ball is projected from point A with velocity 10m/sec. perpendicular to the inclined plane as in figure. Range of the ball on the incline is
physics-General
physics-
The position–time (x–t) graphs for two children A and B returning from their school O to their homes P and Q respectively along straight line path (taken as x axis) are shown in figure below. Choose the correct statement (s):
The position–time (x–t) graphs for two children A and B returning from their school O to their homes P and Q respectively along straight line path (taken as x axis) are shown in figure below. Choose the correct statement (s):
physics-General
physics-
The graph shows position as a function of time for two trains running on parallel tracks Which statement is true?
The graph shows position as a function of time for two trains running on parallel tracks Which statement is true?
physics-General
physics-
Two blocks are arranged as shown in the figure. The relation between acceleration a1 and a2 is :
Two blocks are arranged as shown in the figure. The relation between acceleration a1 and a2 is :
physics-General
physics-
In figure shown on the right, the mass of the trolley is 100 kg, and it can move without friction on the horizontal floor. Its length is 12m. The mass of the girl is 50 kg. Friction exists between the shoes of the girl and the trolley’s upper surface, with 
= 1/3. The girl can run with a maximum speed = 9 m/s on the surface of the trolley, with respect to the surface. At t = 0 the girl starts running from rest to the right. The trolley was initially stationary.(g = 
)
At a certain moment when the girl was accelerating, the earth frame acceleration of the trolley is found to be 1 m/s2 At this moment, the friction force between the girl’s shoes and the trolley’s surface is
In figure shown on the right, the mass of the trolley is 100 kg, and it can move without friction on the horizontal floor. Its length is 12m. The mass of the girl is 50 kg. Friction exists between the shoes of the girl and the trolley’s upper surface, with = 1/3. The girl can run with a maximum speed = 9 m/s on the surface of the trolley, with respect to the surface. At t = 0 the girl starts running from rest to the right. The trolley was initially stationary.(g = )
At a certain moment when the girl was accelerating, the earth frame acceleration of the trolley is found to be 1 m/s2 At this moment, the friction force between the girl’s shoes and the trolley’s surface is
physics-General
physics-
In figure shown on the right, the mass of the trolley is 100 kg, and it can move without friction on the horizontal floor. Its length is 12m. The mass of the girl is 50 kg. Friction exists between the shoes of the girl and the trolley’s upper surface, with = 1/3. The girl can run with a maximum speed = 9 m/s on the surface of the trolley, with respect to the surface. At t = 0 the girl starts running from rest to the right. The trolley was initially stationary.(g = )
The minimum time in which the girl can stop from 9 m/s relative speed, to zero relative speed, without causing her shoes to slip is
In figure shown on the right, the mass of the trolley is 100 kg, and it can move without friction on the horizontal floor. Its length is 12m. The mass of the girl is 50 kg. Friction exists between the shoes of the girl and the trolley’s upper surface, with = 1/3. The girl can run with a maximum speed = 9 m/s on the surface of the trolley, with respect to the surface. At t = 0 the girl starts running from rest to the right. The trolley was initially stationary.(g = )
The minimum time in which the girl can stop from 9 m/s relative speed, to zero relative speed, without causing her shoes to slip is
physics-General
