Applied Mechanics Questions

• The resultant of two forces P and Q acting at an angle θ, is
• The total time of collision and restitution of two bodies, is called
• A cable loaded with 0.5 tonne per horizontal metre span is stretched between supports in the same horizontal line 400 m apart. If central dip is 20 m, the minimum tension in the cable, will be
• A projectile is thrown at an angle a to the horizontal with α velocity v. It will have the maximum centripetal acceleration
• The length of a Second's pendulum, is
• Work may be defined as
• The unit of Moment of Inertia of a body, is
• A satellite moves in its orbit around the earth due to
• If the tension in a cable supporting a lift moving upwards is twice the tension when the lift is movng downwards, the acceleration of the lift, is
• The mechanical advantage of an ideal machine is 100. For moving the local through 2 m, the effort moves through
• One end of a light string 4 m in length is fixed to a point on a smooth wall and the other end fastened to a point on the surface of a smooth sphere of diameter 2.25 m and of weight 100 kg. The reaction between the sphere and the wall of the arrangement made is
• Time required to stop a car moving with a velocity 20 m/sec within a distance of 40 m, is
• Effect of a force on a body depends upon its
• If two forces P and Q (P > Q) act on the same straight line but in opposite direction, their resultant, is
• The distance of the c.g. of a semi-circular arc of radius r from its diameter along the radius of symmetry, is
• The characteristic of a couple, is :
• A Second's pendulum gains 2 minutes a day. To make it to keep correct time its length
• The resultant of the forces acting on a body will be zero if the body
• Pick up the incorrect statement from the following. In case of suspension bridge due to rise in temperature,
• If the angle between the applied force and the direction of motion of a body, is between 90° and 180°, the work done, is called