A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is__________________?
If the resultant of two forces has the same magnitude as either of the force, then the angle between the two forces is____________________?
The angles between two forces to make their resultant a minimum and a maximum respectively are__________________?
The resultant of two forces P and Q is R. If Q is doubled, the new resultant is perpendicular to P. Then_________________?
A disc of mass 4 kg, radius 0.5m and moment of inertia 3 kg-m2 rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is ___________________?
The following is in unstable equilibrium__________________?
A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?
A rigid body is in a stable equilibrium if the application of any force__________________?
A 70% index of wetness means_______________?
Which of the following types of rain gauges is used for measuring rain in remote hilly inaccessible areas ?
