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__________________?

Related Mcqs:

For a given velocity of a projectile, the range is maximum when the angle of projection is___________________?

A. 30° B. 45° C. 90° D. 0°...

In a lifting machine with efficiency 60%, an effort of 200 N is required to raise a load of 6 kN. The velocity ratio of the machine is_____________________?

A. 30 B. 50 C. 60 D. 80...

A shell travelling with a horizontal velocity of 100 m/sec explodes and splits into two parts, one of mass 10 kg and the other of 15 kg. The 15 kg mass drops vertically downward with initial velocity of 100 m/sec and the 10 kg mass begins to travel at an angle to the horizontal of tan”1 x, where x is______________________?

A. 3/4 B. 4/5 C. 5/3 D. 3/5...

The angle of projection at which the horizontal range and maximum height of a projectile are equal to___________________?

A. 45° B. tan-1 (2) C. tan-‘ (4) D. tan”1 (1/4)...

The following is in unstable equilibrium__________________?

A. a uniform solid cone resting on a generator on a smooth horizontal plane B. a uniform solid cone resting on its base on a horizontal plane C. a solid cube resting on one edge D. a satellite encircling the earth...