A block having equilateral triangular cr...

A block having equilateral triangular cross-section of side a and mass `m` is placed on a rough inclined surface, so that it remains in equilibrium as shown in figure. The torque of normal force acting on the block about its centre of mass is

A

`(sqrt3)/(2) m gs sin theta `

B

`(1)/(2 sqrt3) mga sin theta `

C

`(1)/(2 sqrt3) mga cos theta `

D

Zero

Text Solution

Verified by Experts

The correct Answer is:

B

Topper's Solved these Questions

NTA TPC JEE MAIN TEST 47
NTA MOCK TESTS|Exercise PHYSICS (SUBJECTIVE NUMERICAL)|10 Videos
NTA TPC JEE MAIN TEST 49
NTA MOCK TESTS|Exercise PHYSICS |30 Videos

Similar Questions

Explore conceptually related problems

A block of mass 10 kg is moving on a rough surface as shown in figure. The frictional force acting on block is :-

A cubical block of mass M and edge a slides down a rougg inclined plane of inclination theta with a uniform velocity. The torque of the normal force on the block about its centre has magnitude.

A block of 10 kg mass is placed on a rough inclined surface as shown in figure. The acceleration of the block will be

A horizontal force acting on a block of mass m which is placed on an inclined plane (as shown in the figure). What is the normal reaction N on the block?

A block of mass 3kg is at rest on a rough inclined plan as shown in the Figure. The magnitude of net force exerted by the surface on the block will be

A block mass 'm' is kept on the ground as shown in figure. Are forces acting on block action - reaction pair.

A block of mass 10 kg is kept on a fixed rough (mu=0.8) inclined plane of angle of inclination 30^(@) . The frictional force acting on the block is

Two block of masses 2kg and 4kg are released from rest over a smooth inclined place of inclination 30^(@) as shown in figure what is the normal force between the two blocks?

A block of mass m is placed on a smooth wedge of inclination theta & mass M. The whole system is slip on the wedge. Then the normal reaction on the wedge acting from the ground :

NTA MOCK TESTS-NTA TPC JEE MAIN TEST 48-PHYSICS

A block of mass 70kg is kept on a rough horizontal surface (mu=0.4) . ...
Text Solution
|
Calculate the wavelength of sodium light In a biprism experiment with ...
Text Solution
|
The work done in blowing a soap bubble of volume V is W, then what wil...
Text Solution
|
If light travels at a distance x in time to seconds in air and 10x dis...
Text Solution
|
A block having equilateral triangular cross-section of side a and mass...
Text Solution
|
A spherical shell has mass one fourth of mass of a solid sphere and bo...
Text Solution
|
On what factors does internal energy of an ideal gas depends?
Text Solution
|
In a Young's double slit experiment, fringe width equal to 1 mm is obs...
Text Solution
|
In the diagram shown, the block A and B are of the same mass M and the...
Text Solution
|
A car of mass m is accelerating on a level smooth road under the actio...
Text Solution
|
A metal has a work function phi(0) and its corresponding threshold wav...
Text Solution
|
Calculate the resistivity (in Omega m) of a p type semiconductor if th...
Text Solution
|
Internal energy of n(1) moles of monoatomic molecule of helium is sam...
Text Solution
|
A current I is flowing through a loop. The direction of the current an...
Text Solution
|
A source emitting sound of frequency 100 Hz . It is placed in front of...
Text Solution
|
An air chamber of volume V has a neck of crosssectional area "a' into ...
Text Solution
|
Energy (E) is expressed as E = ax + ( t ^(2) sqrtb)/(m) here m is for ...
Text Solution
|
Consider a 100 m long wire of density 7700 kg //m^(3), Young's modulu...
Text Solution
|
Two engines A & B are operated in series between three reservoirs at t...
Text Solution
|
Consider a monoatomic ideal gas confined in an isolated closed chamber...
Text Solution
|