A horizontal constant force F pulls a bl...

A horizontal constant force F pulls a block of mass m placed on a horizontal surface. If the coefficient of kinetic friction between the block and ground is `mu`, find the power delivered by the external agent after a time t measured from the beginning of action of the force.

`ma^(2)t`

`m mu gat`

`mu m (a+mug)g t`

`m(a+mu g)at`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

WORK ENERGY AND POWER
VMC MODULES ENGLISH|Exercise IMPECCABLE|54 Videos
WORK ENERGY AND POWER
VMC MODULES ENGLISH|Exercise ENABLE|50 Videos
WAVE MOTION
VMC MODULES ENGLISH|Exercise JEE ADVANCED ARCHIVE LEVEL 2 (TRUE FALSE TYPE)|4 Videos

Similar Questions

Explore conceptually related problems

A horizontal constant force F pulls a block of mass m placed on a horizontal surface. If the coefficient of kinetic friction between the block and ground is mu , find the power delivered by the external agent after a time agent after a time t measured from the beginning of action of the force.

A block of mass m is moving with a constant acceleration a on a rough horizontal plane. If the coefficient of friction between the block and ground is mu , the power delivered by the external agent in a time interval t from the beginning is equal to:

A block of mass m is moving on a rough horizontal surface. mu is the coefficient of kinetic friction between the block and the surface. What is the net force exerted by the surface on the block?

A block of mass m is slowly pulled along a curved surface from position 1 and 2. If the coefficient of kinetic friction between the block and surface is mu , find the work done by the applied force.

A block of mass m is placed at rest on an inclination theta to the horizontal. If the coefficient of friction between the block and the plane is mu , then the total force the inclined plane exerts on the block is

A block of mass 1 kg lies on a horizontal surface in a truck. The coefficient of static friction between the block and the surface is 0.6. If the acceleration of the truck is 5m//s^2 , the frictional force acting on the block is…………newtons.

What is the value of applied force ‘F’ which is exerted at an angle theta with the horizontal on a block of mass ‘m’ placed on a horizontal rough surface, if the coefficient of static friction between the block and the surface is , such that the block is on the verge of moving horizontally?

A force F=2t is spplied at t=0 sec to the block of mass m placed on a rough horizontal surface. The coefficient of static and kinetic friction between the block and surface are mu_S and mu_k rspectively. Which of the following graphs best represents the acceleration vs time of the block (mu_Sgtmu_k) ?

VMC MODULES ENGLISH-WORK ENERGY AND POWER -EFFICIENT

A pumping machine pumps water at a rate of 60 cc per minute at a pres...
Text Solution
|
A body , constrained ot move in the y-direction , is subjected to a fr...
Text Solution
|
A horizontal constant force F pulls a block of mass m placed on a hori...
Text Solution
|
Find the ratio of work done by gravity on the block under the two cond...
Text Solution
|
A spring, placed horizontally on a rough surface is compressed by a bl...
Text Solution
|
A block of mass M is attached to the lower end of a verticle spring. T...
Text Solution
|
When a body of mass M slides down an inclined plane of inclination the...
Text Solution
|
An object is pushed and pulled along a certain angle with respect to h...
Text Solution
|
The force acting on a body is inversely proportional to the distance (...
Text Solution
|
A particle at rest is constrained to move on a smooth horizontal surfa...
Text Solution
|
Find the horizontal velocity of the particle when it reach the point Q...
Text Solution
|
A neutron of mass 1.67xx10^(-27) kg moving with a speed of 3xx10^(6)ms...
Text Solution
|
A rain drop with radus 1.5 mm falls from a cloud at a height 1200 m fr...
Text Solution
|
A body of mass 5kg initially at rest, is subjected to a force of 40 N....
Text Solution
|
A body is constrained to move along z-axis of the co-ordinate system i...
Text Solution
|
A body moves from point A to B under the action of a force, varying in...
Text Solution
|
A body dropped from a height 'H' reaches the ground with a speed of 1....
Text Solution
|
A block of mass m = 2 kg is attached to two unstretched spring of forc...
Text Solution
|
A 16kg block moving on a frictionless horizontal surface with a veloci...
Text Solution
|
A small block of mass 500 gm is pressed against a horizontal spring fi...
Text Solution
|