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

Related Mcqs:

1. A block in the shape of a parallelopiped of sides lm x 2m x 3m lies on the surface. Which of the faces gives maximum stable block ?

   A. 1 m x 2 m
   B. 2 m x 3 m
   C. 1 m x 3m
   D. equally stable on all faces

2. A particle is dropped from a height of 3 m on a horizontal floor, which has a coefficient of restitution with the ball of 1/2. The height to which the ball will rebound after striking the floor is____________________?

   A. 0.5 m
   B. 0.75 m
   C. 1.0 m
   D. 1.5 m

3. A ball is dropped from a height of 16 m on a horizontal floor. If it rebounds to a height of 9 m after striking the floor, the coefficient of restitution between ball and floor is_____________________?

   A. 1/4
   B. 2/3
   C. 3/4
   D. 4/3

4. A light rope is loaded with many equal weights at equal horizontal intervals. The points of suspension on the rope lie on a_____________________?

   A. parabola
   B. catenary
   C. cycloid
   D. ellipse

5. A rigid body is in a stable equilibrium if the application of any force__________________?

   A. can raise the CG of the body but can not lower it
   B. tends to lower the CG of the body
   C. neither raises nor lowers the CG of the body
   D. none of above

6. Two objects moving with uniform speeds are 5 m apart after 1 second when they move towards each other and are 1 m apart when they move in the same direction. The speeds of the objects are____________________?

   A. 2 m/sec and 2 m/sec
   B. 3 m/sec and 2 m/sec
   C. 3 m/sec and 3 m/sec
   D. 4 m/sec and 6 m/sec

7. A body is dropped from a height of 100 m and at the same time another body is projected vertically upward with a velocity of 10 m/sec. The two particles will____________________?

   A. never meet
   B. meet after 1 sec
   C. meet after 5 sec
   D. meet after 10 sec

8. 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)

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

   A. 36°
   B. 45°
   C. 56°
   D. 76°

10. 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 ___________________?

    A. 50 J
    B. 150 J
    C. 200 J
    D. 400 J