A shell of mass 100 kg travelling with a velocity of 10 m/sec breaks into two equal pieces during an explosion which provides an extra kinetic energy of 20000 Joules. If the pieces continue to move in the same direction as before, then the speed of the faster one must be____________________?

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...

When a body slides down an inclined surface, the acceleration of the body is given by__________________?

A. g B. gsinG C. g cos 6 D. g tan 6 where ‘g’ is acceleration due to gravity and 9 is the angle of inclination of surface with the horizontal...

If the direction of projection bisects the angle between the vertical and the inclined plane, then the range of projectile on the inclined plane is__________________?

A. zero B. maximum C. minimum D. unpredictable...

A uniform pyramid and a uniform prism of same height lie with their base on the surface. Which is more stable ?

A. pyramid B. prism C. both equally stable D. none of the above...