Physics-
General
Easy
Question
What is the velocity of the bob of a simple pendulum at its mean position, if it is able to rise to vertical height of 
(Take 
)
The correct answer is:
Related Questions to study
physics-
The block of mass M moving on the frictionless horizontal surface collides with the spring of spring constant k and compresses it by length L. The maximum momentum of the block after collides is
Momentum would be maximum when KE would be maximum and this is the case when total elastic PE is converted KE.
According to conservation of energy
Or
According to conservation of energy
Or
The block of mass M moving on the frictionless horizontal surface collides with the spring of spring constant k and compresses it by length L. The maximum momentum of the block after collides is
physics-General
Momentum would be maximum when KE would be maximum and this is the case when total elastic PE is converted KE.
According to conservation of energy
Or
According to conservation of energy
Or
physics
The area covered by the curve of V-t graph and time axis is equal to magnitude of
The area covered by the curve of V-t graph and time axis is equal to magnitude of
physicsGeneral
physics-
In a children’s park, there is a slide which has a total length of 10 m and a height of 8.0 m. A vertical ladder is provided to reach the top. A boy weighing 200 N climbs up the ladder to the top of the slide and slides down to the ground. The average friction offered by the slide is three-tenth of his weight. The work done by the slide on the boy as he comes down is
or
In a children’s park, there is a slide which has a total length of 10 m and a height of 8.0 m. A vertical ladder is provided to reach the top. A boy weighing 200 N climbs up the ladder to the top of the slide and slides down to the ground. The average friction offered by the slide is three-tenth of his weight. The work done by the slide on the boy as he comes down is
physics-General
or
physics-
A mass ‘m’ moves with a velocity 'v’ and collides in elastically with another identical mass. After collision the Ist mass moves with velocity 
in a direction perpendicular to the initial direction of motion. Find the speed of the 2nd mass after collision
Let mass 
moves with velocity 
and collides inelastically with mass 
which is at rest
According to problem mass moves in a perpendicular direction and let the mass 
moves at angle 
with the horizontal with velocity
Initial horizontal momentum of system
(before collision)
….(i)
Final horizontal momentum of system
(after collision)
….(ii)
From the conservation of horizontal linear momentum
…(iii)
Initial vertical momentum of system (before collision) is zero
Final vertical momentum of system
From the conservation of vertical linear momentum
…(iv)
By solving (iii) and (iv)
moves with velocity and collides inelastically with mass which is at restAccording to problem mass
moves in a perpendicular direction and let the mass moves at angle with the horizontal with velocity Initial horizontal momentum of system
(before collision)
….(i)Final horizontal momentum of system
(after collision)
….(ii)From the conservation of horizontal linear momentum
…(iii)Initial vertical momentum of system (before collision) is zero
Final vertical momentum of system
From the conservation of vertical linear momentum
…(iv)By solving (iii) and (iv)
A mass ‘m’ moves with a velocity 'v’ and collides in elastically with another identical mass. After collision the Ist mass moves with velocity in a direction perpendicular to the initial direction of motion. Find the speed of the 2nd mass after collision
physics-General
Let mass moves with velocity and collides inelastically with mass which is at rest
According to problem mass moves in a perpendicular direction and let the mass moves at angle with the horizontal with velocity
Initial horizontal momentum of system
(before collision) ….(i)
Final horizontal momentum of system
(after collision) ….(ii)
From the conservation of horizontal linear momentum
…(iii)
Initial vertical momentum of system (before collision) is zero
Final vertical momentum of system
From the conservation of vertical linear momentum
…(iv)
By solving (iii) and (iv)
moves with velocity and collides inelastically with mass which is at restAccording to problem mass
moves in a perpendicular direction and let the mass moves at angle with the horizontal with velocity Initial horizontal momentum of system
(before collision)
….(i)Final horizontal momentum of system
(after collision)
….(ii)From the conservation of horizontal linear momentum
…(iii)Initial vertical momentum of system (before collision) is zero
Final vertical momentum of system
From the conservation of vertical linear momentum
…(iv)By solving (iii) and (iv)
physics-
A toy car of mass 5 kg moves up a ramp under the influence of force 
plotted against displacement 
. The maximum height attained is given by
Work done = Gain in potential energy
Area under curve
Area under curve
A toy car of mass 5 kg moves up a ramp under the influence of force plotted against displacement . The maximum height attained is given by
physics-General
Work done = Gain in potential energy
Area under curve
Area under curve
physics
In uniformly accelerated motion the slope of velocity - time graph gives ....
In uniformly accelerated motion the slope of velocity - time graph gives ....
physicsGeneral
physics
The graph of displacement (x) 
time (t) for an object is given in the figure. In which part of the graph the acceleration of the particle is positive ?
The graph of displacement (x) time (t) for an object is given in the figure. In which part of the graph the acceleration of the particle is positive ?
physicsGeneral
physics
In the above figure acceleration (a) time (t) graph is given. Hence 
In the above figure acceleration (a) time (t) graph is given. Hence
physicsGeneral
physics-
A block of mass 2kg is free to move along the x- axis. It is at rest and from t=0 onwards it is subjected to a time-dependent force 
in the x- direction. The force varies with t as shown in the figure. The kinetic energy of the block after 4.5 seconds is
A block of mass 2kg is free to move along the x- axis. It is at rest and from t=0 onwards it is subjected to a time-dependent force in the x- direction. The force varies with t as shown in the figure. The kinetic energy of the block after 4.5 seconds is
physics-General
physics-
The resultant of two forces, one double the other in magnitude, is perpendicular to the smaller of the two forces. The angle between the two forces is -
The resultant of two forces, one double the other in magnitude, is perpendicular to the smaller of the two forces. The angle between the two forces is -
physics-General
physics
Here is a velocity - time graph of a motorbike moving in one direction. Calculate the distance covered by it in last two seconds.
Here is a velocity - time graph of a motorbike moving in one direction. Calculate the distance covered by it in last two seconds.
physicsGeneral
physics
Here are the graphs of velocity time of two cars A and B, Find the ratio of the acceleration. after time t.
Here are the graphs of velocity time of two cars A and B, Find the ratio of the acceleration. after time t.
physicsGeneral
physics
The intercept of the velocity-time graph on the velocity axis gives.
The intercept of the velocity-time graph on the velocity axis gives.
physicsGeneral
physics
Slope of the velocity-time graph gives …….. of a moving body
Slope of the velocity-time graph gives …….. of a moving body
physicsGeneral
Physics
The graph given in the figure shows that the body is moving with.....
The graph given in the figure shows that the body is moving with.....
PhysicsGeneral
