Related Questions

The centre of percussion of a solid cylinder of radius r resting on a horizontal plane will be
A $$\frac{{\text{r}}}{2}$$
B $$\frac{{2{\text{r}}}}{3}$$
C $$\frac{{\text{r}}}{{\text{A}}}$$
D $$\frac{{3{\text{r}}}}{2}$$
A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. 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 None of the above
The height of a cylinder is four times the radius of the cylinder. If the volume of the cylinder is 256 cm², what is the radius of the cylinder.
A 4 cm
B 8 cm
C 16 cm
D 24 cm
A solid cone of height 36 cm and radius of base 9 cm is melted to form a solid cylinder of radius 9 cm and height 9 cm. What percent of material is wasted this process?
A 25
B 5
C 0
D 10
Center of percussion is
A The point of C.G.
B The point of metacenter
C The point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis
D Point of suspension
The center of percussion of the homogeneous rod of length L suspended at the top will be
A $$\frac{{\text{L}}}{2}$$
B $$\frac{{\text{L}}}{3}$$
C $$\frac{{3{\text{L}}}}{4}$$
D $$\frac{{2{\text{L}}}}{3}$$
If a suspended body is struck at the center of percussion, then the pressure on die axis passing through the point of suspension will be
A Maximum
B Minimum
C Zero
D Infinity
In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder whereas the last expansion is completed in low pressure cylinder. The diameter of high pressure cylinder is _________ the low pressure cylinder.
A Equal to
B Less than
C More than
D None of these
ABCD is a square of side 10. AFC is an are of a circle with the center at D and radius 10. AGC is an are of a circle with the center at B and radius 10. Find the area of AFCG/
A 50 -100pie
B 25 -100 pie
C 100-25 pie
D 100-50pie
Radius of circle center 0 is 3 times the radius of circle center C. Angle ACB -A angle POQ. If the shaded are of circle C is 2 then what is the area of then shaded part of circleO?
A 36
B 9
C 12
D 18

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