Physics-
General
Easy
Question
A
mass moves along
-axis. Its acceleration as a function of its position is shown in the figure. What is the total work done on the mass by the force as the mass moves from
to 

The correct answer is: 
Work done = Area covered in between force displacement curve and displacement axis
= Mass
Area covered in between acceleration-displacement curve and displacement axis

Related Questions to study
physics-
A mass
slips along the wall of a semispherical surface of radius
. The velocity at the bottom of the surface is

A mass
slips along the wall of a semispherical surface of radius
. The velocity at the bottom of the surface is

physics-General
physics-
Three forces of magnitudes 6N, 6N and
N at a corner of a cube along three sides as shown in figure. Resultant of these forces is

Three forces of magnitudes 6N, 6N and
N at a corner of a cube along three sides as shown in figure. Resultant of these forces is

physics-General
physics-
A man standing on a hill top projects a stone horizontally with speed
as shown in figure. Taking the coordinate system as given in the figure. The coordinates of the point where the stone will hit the hill surface
A man standing on a hill top projects a stone horizontally with speed
as shown in figure. Taking the coordinate system as given in the figure. The coordinates of the point where the stone will hit the hill surface
physics-General
physics-
A particle is acted upon by a force
which varies with position
as shown in the figure. If the particle at
has kinetic energy of 25 J, then the kinetic energy of the particle at
is

A particle is acted upon by a force
which varies with position
as shown in the figure. If the particle at
has kinetic energy of 25 J, then the kinetic energy of the particle at
is

physics-General
physics-
A bob of mass
accelerates uniformly from rest to
in time
. As a function of
, the instantaneous power delivered to the body is

A bob of mass
accelerates uniformly from rest to
in time
. As a function of
, the instantaneous power delivered to the body is

physics-General
physics-
An aeroplane is flying in a horizontal direction with a velocity
at a height of 1960 m. when it is vertically above the point
on the ground, a body is dropped from it. The body strikes the ground at point
. Calculate the distance 

An aeroplane is flying in a horizontal direction with a velocity
at a height of 1960 m. when it is vertically above the point
on the ground, a body is dropped from it. The body strikes the ground at point
. Calculate the distance 

physics-General
Maths-
If the equation
represents an ellipse then
If the equation
represents an ellipse then
Maths-General
physics-
A particle of mass m moving with horizontal speed
as shown in figure. If
than for one dimensional elastic collision, the speed of lighter particle after collision will be

A particle of mass m moving with horizontal speed
as shown in figure. If
than for one dimensional elastic collision, the speed of lighter particle after collision will be

physics-General
Physics-
A particle of mass
attracted with a string of length
is just revolving on the vertical circle without slacking of the string. If
and
are speed at position
and
then

A particle of mass
attracted with a string of length
is just revolving on the vertical circle without slacking of the string. If
and
are speed at position
and
then

Physics-General
physics-
A simple pendulum is released from
as shown. If
and
represent the mass of the bob and length of the pendulum, the gain in kinetic energy at
is

A simple pendulum is released from
as shown. If
and
represent the mass of the bob and length of the pendulum, the gain in kinetic energy at
is

physics-General
Maths-
P(θ) and
are the pts. on the ellipse
then 
P(θ) and
are the pts. on the ellipse
then 
Maths-General
physics-
A ball of mass
rests on a vertical post of height
. A bullet of mass
, travelling with a velocity
in a horizontal direction, hits the centre of the ball. After the collision, the ball and bullet travel independently. The ball hits the ground at a distance of
and the bullet at a distance of
from the foot of the post. The initial velocity
of the bullet is

A ball of mass
rests on a vertical post of height
. A bullet of mass
, travelling with a velocity
in a horizontal direction, hits the centre of the ball. After the collision, the ball and bullet travel independently. The ball hits the ground at a distance of
and the bullet at a distance of
from the foot of the post. The initial velocity
of the bullet is

physics-General
physics-
A particle
is sliding down a frictionless hemispherical bowl. It passes the point
at
. At this instant of time, the horizontal component of its velocity
. A bead
of the same mass as
is ejected from
to
along the horizontal string
(see figure) with the speed
. Friction between the bead and the string may be neglected. Let
and
be the respective time taken by
and
to reach the point
. Then
A particle
is sliding down a frictionless hemispherical bowl. It passes the point
at
. At this instant of time, the horizontal component of its velocity
. A bead
of the same mass as
is ejected from
to
along the horizontal string
(see figure) with the speed
. Friction between the bead and the string may be neglected. Let
and
be the respective time taken by
and
to reach the point
. Then
physics-General
Maths-
If the chords of contact of
and
w.r.t the ellipse
are at right angle then 
If the chords of contact of
and
w.r.t the ellipse
are at right angle then 
Maths-General
Maths-
The area of an ellipse is 8π sq. units dist. between the foci is
then e=
The area of an ellipse is 8π sq. units dist. between the foci is
then e=
Maths-General