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

None of these
Zero
10 m/sec
5 m/sec

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Applied Mechanics and Graphic Statics
Kinetic friction may be defined as

Angle between normal reaction and resultant of normal reaction and limiting friction
Ratio of limiting friction and normal reaction
Friction force acting when the body is in motion
Friction force acting when the body is just about to move

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Applied Mechanics and Graphic Statics
The resolved part of the resultant of two forces inclined at an angle θ in a given direction is

Difference of the forces multiplied by cosine θ°
Sum of the forces multiplied by the tangent θ°
Algebraic sum of the resolved parts of the forces in the direction
Arithmetical sum of the resolved parts of the forces in the direction

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