A body of mass 6 kg is acted upon by a...

A body of mass 6 kg is acted upon by a force which causes a displacement in it given by ` x = (t^(2))/( 4) ` metre where t is the time in second. The work done by the force in 2 seconds is

12 J

9 J

6 J

3 J

Text Solution

Verified by Experts

Topper's Solved these Questions

QUESTION PAPER 2010
WB JEE PREVIOUS YEAR PAPER|Exercise PHYSICS|45 Videos
QUESTION PAPER 2012
WB JEE PREVIOUS YEAR PAPER|Exercise Subject: Physics|38 Videos

Similar Questions

Explore conceptually related problems

A body of mass 6 kg is acted upon by a force which causes a displacement in it given by x = t^2/4 meter, where t is the time in second. The work done by the force in 2 seconds is

A body of mass 3 kg is under a force which causes a displacement in it given by S = t^2//3 in m. Work done by the force is 2 sec

A body of mass 3 kg acted upon by a constant force is displaced by 's' meter, given by the relation s=(1)/(3)t^(2) , where t is in second. Work done by the force in 2 seconds is

The relation between the displaement x and the time t for a body of mass 2 kg moving under the action of a force is given by x=t^3//3 , where x is in metre and t in second . Calculate the work done by the body in the first 2 seconds .

The magnetic flux linked with a coil satisfies the relation phi=4t^(2)+6t+9 Wb where t is the time in second. The e.m.f. induced in the coil at t =2 second is

The x and y coordiates of a particle at any time t are given by x = 7t + 14 t^(2) and y = 5t, where x and y are in metre and t is in second. The acceleration of the particle at t = 5 s is

Equation of a wave is given by y = 10^(4) sin(60t + 2x) , x & y in metre and t is in second. Then

A force is acting on a mass of 6kg. Displacement x of the mass is related with time t as x=(t^2)/4 m. work done by the force in 2 s is

The relation between displacement & time is given by — y = -(2/3) t^2 + 16t + 2 . After how many seconds the body will be at rest?

WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2011-PHYSICS

A stone of relative density K is released from rest on the surface o...
Text Solution
|
If a person can throw a stone to maximum height of h metre vertical...
Text Solution
|
A body of mass 6 kg is acted upon by a force which causes a displace...
Text Solution
|
A box is moved along a straight line by a machine delivering constant...
Text Solution
|
A particle is moving with a constant speed v in a circle. What is the ...
Text Solution
|
A cricket ball of mass 0.25 kg with speed 10 m/s collides with a ba...
Text Solution
|
If The Earth were to suddenly contract to ( 1)/( n) th of its pre...
Text Solution
|
If g is the acceleration due to gravity on the surface of the earth ,...
Text Solution
|
The charge on the capacitor of capacitance C shown in the figure belo...
Text Solution
|
The resistance across A and B in the figure below will be
Text Solution
|
Five equal resistances , each of resistance R , are connected as shown...
Text Solution
|
Two cells each of emf e but internal resistance r1 and r2 are connecte...
Text Solution
|
Current through ABC and A'B'C' is 1. What is the magnetic field at P? ...
Text Solution
|
The magnetic field at the point of intersection of diagonals of a squa...
Text Solution
|
In an inelastic colliston an electron excites as hydrogen atom from it...
Text Solution
|
A radioactive nucleus of mass number A , initially at rest , emits an ...
Text Solution
|
In the nuclear reaction underset7 overset( 14) N+ X to underset6 ov...
Text Solution
|
Which type of Gate the following truth table represents ?
Text Solution
|
A material has Poisson 's ratio 0.50 . If a uniform rod it suffers a l...
Text Solution
|
Two identical springs are connected to mass m as shown (k= spring con...
Text Solution
|