Two balls of masses 3 kg and 6 kg are moving with velocities of 4 m/sec and 1 m/sec respectively, towards each other along the line of their centers. After impact the 3 kg ball comes to rest. This can happen only if the coefficient of restitution between the balls is

Applied Mechanics and Graphic Statics
Two balls of masses 3 kg and 6 kg are moving with velocities of 4 m/sec and 1 m/sec respectively, towards each other along the line of their centers. After impact the 3 kg ball comes to rest. This can happen only if the coefficient of restitution between the balls is

43835

43895

43833

43864

43835

43895

43833

43864

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Applied Mechanics and Graphic Statics
When a body in equilibrium undergoes an infinitely small displacement, work imagined to be done, is known as

Imaginary work

None of these

Negative work

Virtual work

Imaginary work

None of these

Negative work

Virtual work

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Applied Mechanics and Graphic Statics
If a body is lying on a plane whose inclination with the horizontal is less than the angle of friction, theni. a force is required to move the body upwardsii. a force is required to move the body downwardiii. the body will not be in equilibriumThe correct answer is

only (ii)

both (i) and (iii)

only (i)

both (i) and (ii)

only (ii)

both (i) and (iii)

only (i)

both (i) and (ii)

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Applied Mechanics and Graphic Statics
A particle is dropped from the top of a tower 60 m high and another is projected upwards from the foot of the tower to meet the first particle at a height of 15.9 m. The velocity of projection of the second particle is

20 m/sec

18 m/sec

22 m/sec

16 m/sec

20 m/sec

18 m/sec

22 m/sec

16 m/sec

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Applied Mechanics and Graphic Statics
Newton's law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation

Bears a constant ratio to their velocity of approach

Is inversely proportional to their velocity of approach

Is equal to the sum of their velocities of approach

Is directly proportional to their velocity of approach

Bears a constant ratio to their velocity of approach

Is inversely proportional to their velocity of approach

Is equal to the sum of their velocities of approach

Is directly proportional to their velocity of approach

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Applied Mechanics and Graphic Statics
The unit of rotational inertia of a body in C.G.S system is

gm.cm²

cm⁴

gm.cm3

kg.cm²

gm.cm²

cm⁴

gm.cm3

kg.cm²

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics When a body in equilibrium undergoes an infinitely small displacement, work imagined to be done, is known as

Applied Mechanics and Graphic Statics A particle is dropped from the top of a tower 60 m high and another is projected upwards from the foot of the tower to meet the first particle at a height of 15.9 m. The velocity of projection of the second particle is

Applied Mechanics and Graphic Statics Newton's law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation

Applied Mechanics and Graphic Statics The unit of rotational inertia of a body in C.G.S system is

Applied Mechanics and Graphic Statics
When a body in equilibrium undergoes an infinitely small displacement, work imagined to be done, is known as

Applied Mechanics and Graphic Statics
A particle is dropped from the top of a tower 60 m high and another is projected upwards from the foot of the tower to meet the first particle at a height of 15.9 m. The velocity of projection of the second particle is

Applied Mechanics and Graphic Statics
Newton's law of Collision of elastic bodies states that when two moving bodies collide each other, their velocity of separation

Applied Mechanics and Graphic Statics
The unit of rotational inertia of a body in C.G.S system is