Q. A projectile is fired with a velocity of 100.3 m/sec. at an elevation of 60°. The velocity attained by the projectile when it is moving at a height of 100 m, is

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Q. For maximum range of a projectile, the angle of projection should be

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Q. A particle moves with a velocity of 2 m/sec in a straight line with a negative acceleration of 0.1 m/sec². Time required to traverse a distance of 1.5 m, is

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Q. A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The velocity ratio of the lifting machine is

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Q. The angle of friction is :

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Q. The resultant of two forces acting at right angles is 5 kgf and if they act at an angle of 60°, it is √37 kgf. The magnitudes of the forces are :

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Q. The motion of a particle is described by the relation x = t²- 10t + 30, where x is in metres and t in seconds. The total distance travelled by the particle from t = 0 to t = 10 seconds would be

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Q. Three forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and

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Q. For perfectly elastic bodies, the value of coefficient of restitution is

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Q. 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

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Q. Principle of Transmissibility of Forces states that, when a force acts upon a body, its effect is

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Q. A ball is dropped from a height of 2.25 m on a smooth floor and rises to a height of 1.00 m after the bounce. The coefficient of restitution between the ball and the floor is

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Q. If the linear velocity of a point on the rim of a wheel of 10 m diameter, is 50 m/sec, its angular velocity will be

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Q. The acceleration of a train starting from rest at any instant is 1/6(V+1) m/sec² where V is the velocity of the train in m/sec. The train will attain a velocity of 36 km/hour after travelling a distance of

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Q. The maximum frictional force which comes into play, when a body just begins to slide over the surface of a an other body, is known

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Q. Newtons's Law of Motion is :

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Q. The equation of motion of a particle starting from rest along a straight line is x = t³ - 3l² + 5. The ratio of the velocities after 5 sec and 3 sec will be

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Q. The moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter is 6 cm, about centroidal axis, is

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Q. The resultant of two forces acting at right angles is √34 kg and acting at 60° is 70 kg. The forces are

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Q. Two particles have been projected at angles 64° and 45° to the horizontal. If the velocity of projection of first is 10 m/sec, the velocity of projection of the other for equal horizontal ranges is

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