Ball ‘A’ of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/s hits an identical stationary ball ‘B’ on the table. If the impact is perfectly elastic, the velocity of the ball ‘B’ just after impact would be

Applied Mechanics and Graphic Statics
Ball ‘A’ of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/s hits an identical stationary ball ‘B’ on the table. If the impact is perfectly elastic, the velocity of the ball ‘B’ just after impact would be

None of these

Zero

10 m/sec

5 m/sec

None of these

Zero

10 m/sec

5 m/sec

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Applied Mechanics and Graphic Statics
A system of coplanar forces acting on a rigid body can be reduced to

None of these

One force only

One force and one couple only

One couple only

None of these

One force only

One force and one couple only

One couple only

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Applied Mechanics and Graphic Statics
If the given forces P₁, P₂, P₃ and P₄ are such that the force polygon does not close, then the system will

Always reduce to a couple

Always reduce to a resultant force

Be in equilibrium

Both (A) and (C)

Always reduce to a couple

Always reduce to a resultant force

Be in equilibrium

Both (A) and (C)

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Applied Mechanics and Graphic Statics
The rotational velocity of a satellite is increased by 450 m per second if its launch is done from equator

Northward

Westward

Eastward

Southward

Northward

Westward

Eastward

Southward

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Applied Mechanics and Graphic Statics
A trolley wire weighs 1 kg per metre length. The ends of the wire are attached to two poles 20 m apart. If the horizontal tension is 1000 kg, the central dip of the cable is

5 cm

3 cm

4 cm

2 cm

5 cm

3 cm

4 cm

2 cm

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Applied Mechanics and Graphic Statics
If a projectile is fired with an initial velocity of 10 m/sec at an angle of 60° to the horizontal, its horizontal and vertical velocity at the highest point of trajectory are

5 and 5√3 m/sec

0 and 5 m/sec

5√3 m/sec and 0

5 m/sec and 0

5 and 5√3 m/sec

0 and 5 m/sec

5√3 m/sec and 0

5 m/sec and 0

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Applied Mechanics and Graphic Statics

Applied Mechanics and Graphic Statics Ball ‘A’ of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/s hits an identical stationary ball ‘B’ on the table. If the impact is perfectly elastic, the velocity of the ball ‘B’ just after impact would be

Applied Mechanics and Graphic Statics A system of coplanar forces acting on a rigid body can be reduced to

Applied Mechanics and Graphic Statics If the given forces P₁, P₂, P₃ and P₄ are such that the force polygon does not close, then the system will

Applied Mechanics and Graphic Statics The rotational velocity of a satellite is increased by 450 m per second if its launch is done from equator

Applied Mechanics and Graphic Statics A trolley wire weighs 1 kg per metre length. The ends of the wire are attached to two poles 20 m apart. If the horizontal tension is 1000 kg, the central dip of the cable is

Applied Mechanics and Graphic Statics If a projectile is fired with an initial velocity of 10 m/sec at an angle of 60° to the horizontal, its horizontal and vertical velocity at the highest point of trajectory are

Applied Mechanics and Graphic Statics
Ball ‘A’ of mass 250 g moving on a smooth horizontal table with a velocity of 10 m/s hits an identical stationary ball ‘B’ on the table. If the impact is perfectly elastic, the velocity of the ball ‘B’ just after impact would be

Applied Mechanics and Graphic Statics
A system of coplanar forces acting on a rigid body can be reduced to

Applied Mechanics and Graphic Statics
If the given forces P₁, P₂, P₃ and P₄ are such that the force polygon does not close, then the system will

Applied Mechanics and Graphic Statics
The rotational velocity of a satellite is increased by 450 m per second if its launch is done from equator

Applied Mechanics and Graphic Statics
A trolley wire weighs 1 kg per metre length. The ends of the wire are attached to two poles 20 m apart. If the horizontal tension is 1000 kg, the central dip of the cable is

Applied Mechanics and Graphic Statics
If a projectile is fired with an initial velocity of 10 m/sec at an angle of 60° to the horizontal, its horizontal and vertical velocity at the highest point of trajectory are