Physics-
General
Easy
Question
A car moves from 
with a uniform speed 
and returns to 
with a uniform speed 
The average speed for this round trip is
The correct answer is:
Let 
be times taken by the car to go from and then from 
respectively.
Then, 
Total distance travelled
Therefore, average speed of the car for this round trip is
Related Questions to study
Physics-
The 
and
coordinates of a particles at any time 
are given by 
and 
where and are in metre and in second. The acceleration of particle at 
is
The and coordinates of a particles at any time are given by and where and are in metre and in second. The acceleration of particle at is
Physics-General
Physics-
Statement 1: When an automobile while going too fast around a curve overturns, its inner wheels leave the ground first
Statement 2: For a safe turn the velocity of automobiles should be less than the value of safe limit velocity
Statement 1: When an automobile while going too fast around a curve overturns, its inner wheels leave the ground first
Statement 2: For a safe turn the velocity of automobiles should be less than the value of safe limit velocity
Physics-General
Physics-
Statement 1: The vector 
is a unit vector.
Statement 2: Unit vector is one which has unit magnitude and a given direction.
Statement 1: The vector is a unit vector.
Statement 2: Unit vector is one which has unit magnitude and a given direction.
Physics-General
Physics-
Statement 1: In circular motion, the centripetal and centrifugal force acting in opposite direction balance each other
Statement 2: Centripetal and centrifugal forces don’t act at the same time
Statement 1: In circular motion, the centripetal and centrifugal force acting in opposite direction balance each other
Statement 2: Centripetal and centrifugal forces don’t act at the same time
Physics-General
Physics-
Statement 1: Improper banking of roads causes wear and tear of tyres
Statement 2: The necessary centripetal force in that event is provided by the force of friction between the tyres and the road
Statement 1: Improper banking of roads causes wear and tear of tyres
Statement 2: The necessary centripetal force in that event is provided by the force of friction between the tyres and the road
Physics-General
Physics-
Statement 1: A safe turn by a cyclist should neither be fast nor sharp
Statement 2: As the bending of angle from the vertical would decrease
Statement 1: A safe turn by a cyclist should neither be fast nor sharp
Statement 2: As the bending of angle from the vertical would decrease
Physics-General
Physics-
Statement 1: If both the speed of a body and radius of its circular path are doubled, then centripetal force also gets doubled
Statement 2: Centripetal force is directly proportional to both speed of a body and radius of circular path
Statement 1: If both the speed of a body and radius of its circular path are doubled, then centripetal force also gets doubled
Statement 2: Centripetal force is directly proportional to both speed of a body and radius of circular path
Physics-General
Physics-
Statement 1: A football whether kicked at 
or 
will strike the ground at the same place, although when kicked at , it will remain longer in the air
Statement 2: Air resistance is more for larger angle
Statement 1: A football whether kicked at or will strike the ground at the same place, although when kicked at , it will remain longer in the air
Statement 2: Air resistance is more for larger angle
Physics-General
Physics-
Statement 1: The resultant of three vectors 
and 
and 
as shown in figure is 
. 
is the radius of circle
Statement 2: 
is along and ()
is along .
Statement 1: The resultant of three vectors and and as shown in figure is . is the radius of circle
Statement 2: is along and () is along .
Physics-General
Physics-
Statement 1: When the velocity of projection of a body is made 
time, its time of flight becomes times
Statement 2: Range of projectile does not depend on the initial velocity of body
Statement 1: When the velocity of projection of a body is made time, its time of flight becomes times
Statement 2: Range of projectile does not depend on the initial velocity of body
Physics-General
Physics-
Statement 1: At the highest point of projectile motion given angular projection, the velocity is not zero
Statement 2: Only the vertical component of velocity is zero whereas horizontal component still exists
Statement 1: At the highest point of projectile motion given angular projection, the velocity is not zero
Statement 2: Only the vertical component of velocity is zero whereas horizontal component still exists
Physics-General
Physics-
Statement 1: The maximum horizontal range of projectile is proportional to square of velocity
Statement 2: The maximum horizontal range of projectile is equal to maximum height attained by projectile
Statement 1: The maximum horizontal range of projectile is proportional to square of velocity
Statement 2: The maximum horizontal range of projectile is equal to maximum height attained by projectile
Physics-General
Physics-
Statement 1: When range of a projectile is maximum, its angle of projection may be 
or 
Statement 2: Whether 
is or , value of range remains the same, only the sign changes
Statement 1: When range of a projectile is maximum, its angle of projection may be or
Statement 2: Whether is or , value of range remains the same, only the sign changes
Physics-General
Physics-
Statement 1: As the frictional force increases, the safe velocity limit for taking a turn on an unbanked road also increases
Statement 2: Banking of roads will increases the value of limiting velocity
Statement 1: As the frictional force increases, the safe velocity limit for taking a turn on an unbanked road also increases
Statement 2: Banking of roads will increases the value of limiting velocity
Physics-General
Physics-
Statement 1: For looping a vertical loop of radius 
, the minimum velocity at the lowest point should be 
Statement 2: In that event, velocity at the highest point would be zero
Statement 1: For looping a vertical loop of radius , the minimum velocity at the lowest point should be
Statement 2: In that event, velocity at the highest point would be zero
Physics-General
