Physics-
General
Easy
Question
A particle crossing the origin of co-ordinates at time 
, moves in the 
-plane with a constant acceleration 
in the 
-direction. If its equation of motion is 
(
is a constant), its velocity component in the 
-direction is
The correct answer is:
Differentiating w.r.t. 
on both sides, we get
Again, differentiating w.r.t. on both sides, we get
, because the particle has constant acceleration along -direction]
As per question
Related Questions to study
Physics-
If KE of the particle of mass 
performing UCM in a circle of radius 
is E. Find the acceleration of the particale
If KE of the particle of mass performing UCM in a circle of radius is E. Find the acceleration of the particale
Physics-General
Physics-
The kinetic energy 
of a particle moving along a circle of radius 
depends on the distance covered 
as 
where is a constant
The kinetic energy of a particle moving along a circle of radius depends on the distance covered as where is a constant
Physics-General
Physics-
A small body of mass slides down from the top of a hemisphere of radius . The surface of block and hemisphere are frictionless. The height at which the body lose contact with the surface of the sphere is
A small body of mass slides down from the top of a hemisphere of radius . The surface of block and hemisphere are frictionless. The height at which the body lose contact with the surface of the sphere isPhysics-General
Physics-General
Physics-
A body is projected at an angle 
to the horizontal with kinetic energy 
. The potential energy at the highest point of the trajectory is
A body is projected at an angle to the horizontal with kinetic energy . The potential energy at the highest point of the trajectory is
Physics-General
Physics-
A mass is attached to the end of a rod of length 
. The mass goes along a vertical circular path with the other end hinged at its centre. What should be the minimum velocity of the mass at the bottom of the circle so that the mass completes the circle?
A mass is attached to the end of a rod of length . The mass goes along a vertical circular path with the other end hinged at its centre. What should be the minimum velocity of the mass at the bottom of the circle so that the mass completes the circle?
Physics-General
Physics-
The height and the distance along the horizontal plane of a projectile on a certain planet (with no surrounding atmosphere) are given by 
metre and 
metre, where 
is in second. The velocity with which the projectile is projected, is
The height and the distance along the horizontal plane of a projectile on a certain planet (with no surrounding atmosphere) are given by metre and metre, where is in second. The velocity with which the projectile is projected, is
Physics-General
Physics-
A sphere of mass is tied to end of a string of length and rotated through the other end along a horizontal circular path with speed 
The work done in full horizontal circle is
A sphere of mass is tied to end of a string of length and rotated through the other end along a horizontal circular path with speed The work done in full horizontal circle is
Physics-General
Physics-
A particle moves in a circle of radius 
with constant speed and time period 
. The acceleration of the particle is
A particle moves in a circle of radius with constant speed and time period . The acceleration of the particle is
Physics-General
Physics-
If the magnitude of the sum of the two vectors is equal to the difference of their magnitudes, then the angle between vectors is
If the magnitude of the sum of the two vectors is equal to the difference of their magnitudes, then the angle between vectors is
Physics-General
Physics-
The centripetal acceleration of a body moving in a circle of radius 100 m with a time period of 2 s will be
The centripetal acceleration of a body moving in a circle of radius 100 m with a time period of 2 s will be
Physics-General
Physics-
Galileo writes that for angles of projection of a projectile at angles 
and 
the horizontal ranges described by the projectile are in the ratio of 
if 
Galileo writes that for angles of projection of a projectile at angles and the horizontal ranges described by the projectile are in the ratio of if
Physics-General
Physics-
Angle between 
and 
is . What is the value of 
?
Angle between and is . What is the value of ?
Physics-General
Physics-
Average torque on a projectile of mass , initial speed 
and angles of projection , between initial and final position 
and 
as shown in figure about the point of projection is
Average torque on a projectile of mass , initial speed and angles of projection , between initial and final position and as shown in figure about the point of projection isPhysics-General
Physics-General
Physics-
In the above question, if the angular velocity is kept same but the radius of the path is halved, the new force will be
In the above question, if the angular velocity is kept same but the radius of the path is halved, the new force will be
Physics-General
Physics-
A body is fired vertically upward. At half the maximum height, the velocity of the body is 
. The maximum height raised by the body is
A body is fired vertically upward. At half the maximum height, the velocity of the body is . The maximum height raised by the body is
Physics-General
