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

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

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Applied Mechanics and Graphic Statics
Newton’s Law of Motion is:

All listed here
To every action, there is always an equal and opposite reaction
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction, in which the force acts
Everybody continues in its state of rest or of uniform motion in a straight line, unless it is acted upon by some external force

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Applied Mechanics and Graphic Statics
A body of weight ‘w’ placed on an inclined plane is acted upon by a force ‘P’ parallel to the plane which causes the body just to move up the plane. If the angle of inclination of the plane is ‘θ’ and angle of friction is ‘φ’, the minimum value of ‘P’, is

w cos (θ + φ)/cos φ
w sin (φ - θ)/cos φ
w sinθ cos(θ - φ)/sin φ
w sin (θ - φ)/cos φ

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Applied Mechanics and Graphic Statics
A ball which is thrown upwards, returns to the ground describing a parabolic path during its flight

Horizontal component of velocity remains constant
Kinetic energy of the ball remains constant
Vertical component of velocity remains constant
Speed of the ball remains constant

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