Physics
General
Easy
Question
The two bodies of mass and respectively are tied to the ends of a massless string, which passes over a light and frictionless pulley. The masses are initially at rest and the released. Then acceleration of the centre of mass of the system is



 zero
The correct answer is:
In the pulley arrangement
But is in downward direction and in the upward direction ,
Acceleration of centre of mass
Related Questions to study
maths
If to terms, terms, , then
If to terms, terms, , then
mathsGeneral
Maths
The coefficient of in is
The coefficient of in is
MathsGeneral
maths
mathsGeneral
chemistry
Compounds (A) and (B) are –
Compounds (A) and (B) are –
chemistryGeneral
Maths
MathsGeneral
maths
A triangle is inscribed in a circle. The vertices of the triangle divide the circle into three arcs of length 3, 4 and 5 units. Then area of the triangle is equal to:
A triangle is inscribed in a circle. The vertices of the triangle divide the circle into three arcs of length 3, 4 and 5 units. Then area of the triangle is equal to:
mathsGeneral
Maths
If one root of the equation is reciprocal of the one of the roots of equation then
If one root of the equation is reciprocal of the one of the roots of equation then
MathsGeneral
Maths
If the quadratic equation and have a common root then is equal to
If the quadratic equation and have a common root then is equal to
MathsGeneral
physics
Two blocks of masses 10 kg and 4 kg are connected by a spring of negligible mass and placed on frictionless horizontal surface. An impulsive force gives a velocity of 14 to the heavier block in the direction of the lighter block. The velocity of centre of mass of the system at that very moment is
Two blocks of masses 10 kg and 4 kg are connected by a spring of negligible mass and placed on frictionless horizontal surface. An impulsive force gives a velocity of 14 to the heavier block in the direction of the lighter block. The velocity of centre of mass of the system at that very moment is
physicsGeneral
Maths
In a Δabc if b+c=3a then has the value equal to –
In a Δabc if b+c=3a then has the value equal to –
MathsGeneral
Maths
In a simplifies to
In a simplifies to
MathsGeneral
Maths
In a triangle ABC, a: b: c = 4: 5: 6. Then 3A + B equals to :
In a triangle ABC, a: b: c = 4: 5: 6. Then 3A + B equals to :
MathsGeneral
physics
A bullet of mass is fired with a velocity of 50 at an angle with the horizontal. At the highest point of its trajectory, it collides had on with a bob of massless string of length m and gets embedded in the bob. After the collision, the string moves to an angle of 120. What is the angle
A bullet of mass is fired with a velocity of 50 at an angle with the horizontal. At the highest point of its trajectory, it collides had on with a bob of massless string of length m and gets embedded in the bob. After the collision, the string moves to an angle of 120. What is the angle
physicsGeneral
physics
A spherical hollow is made in a lead sphere of radius such that its surface touches the outside surface of lead sphere and passes through the centre. What is the shift in the centre of lead sphere as a result of this hollowing?
A spherical hollow is made in a lead sphere of radius such that its surface touches the outside surface of lead sphere and passes through the centre. What is the shift in the centre of lead sphere as a result of this hollowing?
physicsGeneral
chemistry
On heating a mixture of ans , we get –
On heating a mixture of ans , we get –
chemistryGeneral