A. same
B. double
C. half
D. four times
E. one fourth
Related Mcqs:
- A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will____________________?
A. remain horizontal
B. slant up towards direction of pull
C. slant down towards direction of pull
D. unpredictable
E. none of the above - Center of gravity of a thin hollow cone lies on the axis at a height of________________?
A. one-fourth of the total height above base
B. one-third of the total height above base
C. one-half of the total height above base
D. three-eighth of the total height above the base
E. none of the above - From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the center of circular plate___________________?
A. 0.5 cm
B. 1.0 cm
C. 1.5 cm
D. 2.5 cm
E. 0.25 cm - A projectile is fired at an angle 9 to the vertical. Its horizontal range will be maximum when 9 is_________________?
A. 0°
B. 30°
C. 45°
D. 60°
E. 90° - A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve___________________?
A. catenary
B. parabola
C. hyperbola
D. elliptical
E. circular arc - A particle inside a hollow sphere of radius r, having coefficient of friction -rr can rest upto height of__________________?
A. r/2
B. r/A
C. r/%
D. 0.134 r
E. 3r/8 - Center of gravity of a solid cone lies on the axis at the height_______________?
A. one-fourth of the total height above base
B. one-third of the total height above base
C. one-half of the total height above base
D. three-eighth of the total height above the base
E. none of the above - If a suspended body is struck at the centre of percussion, then the pressure on die axis passing through the point of suspension will be___________________?
A. maximum
B. minimum
C. zero
D. infinity
E. same as the force applied - The C.G. of a right circular solid cone of height h lies at the following distance from the base_____________?
A. h/2
B. J/3
C. h/6
D. h/4
E. 3/i/5 - The centre of percussion of a solid cylinder of radius r resting on a horizontal plane will be______________?
A. r/2
B. 2r/3
C. r/A
D. 3r/2
E. 3r/A
