Physics-
General
Easy
Question
The minimum velocity 
with which a car driver must traverse a flat curve of radius of 150 m and coefficient of friction 0.6 to avoid skidding is
- 60
- 30
- 15
- 25
The correct answer is: 30
Using the relation
Related Questions to study
Physics-
A child travelling in a train throws a ball outside with a speed 
. According to a child who is standing on the ground, the speed of the ball is
A child travelling in a train throws a ball outside with a speed . According to a child who is standing on the ground, the speed of the ball is
Physics-General
Maths-
If the points with position vectors 
and 
are collinear, then is equal to
If the points with position vectors and are collinear, then is equal to
Maths-General
Maths-
× 
+ 
× 
+ 
× 
is equal to
× + × + × is equal to
Maths-General
Maths-
If 
= 6 
= 8, 
= 10, then 
is equal to
If = 6 = 8, = 10, then is equal to
Maths-General
Maths-
Projection of the vector 
= 
+ 
– 
on the vector 
= + 
+ 
is
Projection of the vector = + – on the vector = + + is
Maths-General
Maths-
If = (1, 1) and = (–2, m) are collinear vectors, then m =
If = (1, 1) and = (–2, m) are collinear vectors, then m =
Maths-General
Maths-
ABCD is a quadrilateral such that 
, 
& 
. The area of quadrilateral ABCD is –
ABCD is a quadrilateral such that , & . The area of quadrilateral ABCD is –
Maths-General
Maths-
The distance of the point B with position vector 
from the line passing through the point A with position vector 
& parallel to vector 
is –
The distance of the point B with position vector from the line passing through the point A with position vector & parallel to vector is –
Maths-General
Maths-
The projection of the vector 
on the vector 
is
The projection of the vector on the vector is
Maths-General
Maths-
If (2
+ P
+ 2
) is perpendicular to 
then value of P is
If (2 + P + 2) is perpendicular to then value of P is
Maths-General
Maths-
If the difference of two unit vectors is again a unit vector then the angle between them is -
If the difference of two unit vectors is again a unit vector then the angle between them is -
Maths-General
Physics-
A particle of mass 
is projected with a velocity 
making an angle of 
with the horizontal. The magnitude of angular momentum of the projectile about the point of projection when the particle is at its maximum height 
is
A particle of mass is projected with a velocity making an angle of with the horizontal. The magnitude of angular momentum of the projectile about the point of projection when the particle is at its maximum height is
Physics-General
Physics-
A car rounds an unbanked curve of radius 92 m without skidding at a speed of 
. The smallest possible coefficient of static friction between the tyres and the road is
A car rounds an unbanked curve of radius 92 m without skidding at a speed of . The smallest possible coefficient of static friction between the tyres and the road is
Physics-General
Physics-
A body of mass 
is rotating in a vertical circle at the end of a string of length 
metre. The difference in the kinetic energy at the top and bottom of the circle is
A body of mass is rotating in a vertical circle at the end of a string of length metre. The difference in the kinetic energy at the top and bottom of the circle is
Physics-General
Physics-
A cyclist is travelling on a circular section of highway of radius 2500 ft at the speed of 60 mile 
. The cyclist suddenly applies the brakes causing the bicycle to slown sown at constant rate. Knowing that after 8 s the speed has been reduced to 
. The acceleration of the bicycle immediately after the brakes have been applied is
A cyclist is travelling on a circular section of highway of radius 2500 ft at the speed of 60 mile . The cyclist suddenly applies the brakes causing the bicycle to slown sown at constant rate. Knowing that after 8 s the speed has been reduced to . The acceleration of the bicycle immediately after the brakes have been applied is
Physics-General
