A cubical block of mass M and edge a sli...

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.

zero

Mga

`Mgasintheta`

`1/2Mgasintheta`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

ROTATIONAL MECHANICS
HC VERMA|Exercise Objective -2|15 Videos
ROTATIONAL MECHANICS
HC VERMA|Exercise Exercises|86 Videos
ROTATIONAL MECHANICS
HC VERMA|Exercise Questions for short Answer|22 Videos
REST AND MOTION : KINEMATICS
HC VERMA|Exercise Exercises|51 Videos
SIMPLE HARMONIC MOTION
HC VERMA|Exercise Exercises|58 Videos

Similar Questions

Explore conceptually related problems

A block of mass m is placed on a smooth inclined plane of inclination theta with the horizontal. The force exerted by the plane on the block has a magnitude

A block of mass 250 g slides down an incline of inclination 37^0 with a uniform speed. Find the work done against the friction as the block slides through 1.0 m.

A small block of mass m is kept on a rough inclined surface of inclination theta fixed in an elevator. The elevator goes up with a uniform velocity v and the block does not slide on the wedge. The work done by the force of friction on the block in time t will be

A block of mass 3 kg is at rest on a rough inclined plane with angle of inclination 30^@ with horizontal. If mu_s = 0.7, then the frictional force is

A block of mass 5.0 kg slides down an incline of inclination 30^0 and length 10 m. find the work done by the force of gravity.

A block of mass 2.0 kg is pushed down an inclined plane of inclination 37^0 with a force of 20N acting parallel to the incline. It is found that the block moves on the incline with an acceleration of 10 m/s^2 . If the block started from rest, find the work done by the applied force in the first second .

A body of mass 2 kg is lying on rough inclined plane of inclination 30 degree . Find the magnitude of the force parallel to the incline needed to make the block move a. up the incline b. down the incline. Coefficient of static friction =0.2 Repeat part a. of problem 6 if the push is applied horizontally and not parallel to the incline.

If a block of mass m lying on a frictionless inclined plane of length L height h and angle of inclination theta , then the velocity at its bottom is

If a block of mass m lying on a frictionless inclined plane of length L height h and angle of inclination theta , then the time taken to reach the bottom is

A body of mass 100 g is sliding from an inclined plane of inclination 30^@ . If mu = 1.7, then the frictional force experienced is

HC VERMA-ROTATIONAL MECHANICS-Objective -1

A body is rotating uniformly about a vertical axis fixed in an inertia...
Text Solution
|
If F is the force acting on a particle having position vector vec r an...
Text Solution
|
One end of a uniform rod of mas m and length l is clamped. The rod lie...
Text Solution
|
A uniform rod is kept vertically on a horizontally smooth surface at ...
Text Solution
|
A circular disc A of radius r is made from an iron plate of thickness ...
Text Solution
|
Equal torques asct on the discs A and B of theh previous problem, init...
Text Solution
|
A closed tube partly filled with water lies is a horizontal plane. If ...
Text Solution
|
The moment of inertia of a uniform semi-circular wire of mass 'M' and ...
Text Solution
|
Let I1 and I2 be the moments of inertia of two bodies of identical ge...
Text Solution
|
A body having its centre of mass at the origin has three of its partic...
Text Solution
|
A cubical block of mass M and edge a slides down a rougg inclined plan...
Text Solution
|
A thin circular ring of mass M and radius r is rotating about its axis...
Text Solution
|
A man is sitting on a rotating stool with his arms outstretched. If su...
Text Solution
|
The center of a wheel rolling on a plane surface moves with a speed v0...
Text Solution
|
A wheel of radius 20 cm is pushed ot move it on a rough horizontal sur...
Text Solution
|
The angular velocity of the engine (and hence of the wheel) on a scoot...
Text Solution
|
A solid sphere, a hollow sphere and a disc, all having the same mass a...
Text Solution
|
A solid sphere, a ring and a disc all having same mass and radius are ...
Text Solution
|
In the previous question the smallest kinetic energy at the bottom of ...
Text Solution
|
A string of negligible thicknes is wrapped several times around a cyli...
Text Solution
|