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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Q. μ is coefficient of friction. A wheeled vehicle travelling on a circular level track will slip and overturn simultaneously if the ratio of its wheel distance to the height of its centroid, is

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Q. The necessary condition of equilibrium of a body, is :

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Q. A marble ball is rolled on a smooth floor of a room to hit a wall. If the time taken by the ball in returning to the point of projection is twice the time taken in reaching the wall, the coefficient of restitution between the ball and the wall, is

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Q. A number of forces acting simultaneously on a particle of a body

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Q. The force acting on a point on the surface of a rigid body may be considered to act

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