Physics-
General
Easy
Question
The acceleration of a train travelling with speed of as it goes round a curve of radius , is
The correct answer is:
Related Questions to study
Physics-
For a particle in uniform circular motion, thee acceleration at a point on the circle of radius R is (Here is measured from the x-axis)
For a particle in uniform circular motion, thee acceleration at a point on the circle of radius R is (Here is measured from the x-axis)
Physics-General
Physics-
Which of the following is the altitude-time graph for a projectile thrown horizontally from the top of the tower
Which of the following is the altitude-time graph for a projectile thrown horizontally from the top of the tower
Physics-General
Physics-
A force (where is a positive constant) acts on a particle moving in the plane. Starting from the origin, the particle is taken along the positive -axis to the point () and then parallel to the -axis to the . The total work done by the force on the particle is
A force (where is a positive constant) acts on a particle moving in the plane. Starting from the origin, the particle is taken along the positive -axis to the point () and then parallel to the -axis to the . The total work done by the force on the particle is
Physics-General
Physics-
A body is projected at such angle that the horizontal range is three times the greatest height. The angel of projection is
A body is projected at such angle that the horizontal range is three times the greatest height. The angel of projection is
Physics-General
Physics-
A stone of mass tied to a light inextensible string of length is whirling in a circular path of radius in a vertical plane. If the ratio of the maximum tension in the string to the minimum tension in the string is 4 and if is taken to be the speed of the stone at the highest point of the circle is
A stone of mass tied to a light inextensible string of length is whirling in a circular path of radius in a vertical plane. If the ratio of the maximum tension in the string to the minimum tension in the string is 4 and if is taken to be the speed of the stone at the highest point of the circle is
Physics-General
Physics-
In a circus stuntman rides a motorbike in a circular track of radius in the vertical plane. The minimum speed at highest point of track will be
In a circus stuntman rides a motorbike in a circular track of radius in the vertical plane. The minimum speed at highest point of track will be
Physics-General
Physics-
If a cycle wheel of radius 4 completes one revolution in two seconds. Then acceleration of a point on the cycle wheel will be
If a cycle wheel of radius 4 completes one revolution in two seconds. Then acceleration of a point on the cycle wheel will be
Physics-General
Physics-
A cart is moving horizontally along a straight line with constant speed . A projectile is to be fired from the moving cart in such a way that it will return to the cart after the cart has moved . At what speed (relative to the cart) must the projectile be fired Take
A cart is moving horizontally along a straight line with constant speed . A projectile is to be fired from the moving cart in such a way that it will return to the cart after the cart has moved . At what speed (relative to the cart) must the projectile be fired Take
Physics-General
Physics-
A particle of mass is moving in a circular path of constant radius such that its centripetal acceleration is varying with time as, , The power delivered to the particle by the forces acting on it is
A particle of mass is moving in a circular path of constant radius such that its centripetal acceleration is varying with time as, , The power delivered to the particle by the forces acting on it is
Physics-General
Physics-
A particle is moving in a circle of radius in such a way that at any instant the normal and tangential components of its acceleration are equal. If its speed at , the time taken to complete the first revolution is
A particle is moving in a circle of radius in such a way that at any instant the normal and tangential components of its acceleration are equal. If its speed at , the time taken to complete the first revolution is
Physics-General
Physics-
A particle of mass is rotating in a horizontal circle of radius and is attached to a hanging mass as shown in the figure. The speed of rotation required by the mass keep steady is
A particle of mass is rotating in a horizontal circle of radius and is attached to a hanging mass as shown in the figure. The speed of rotation required by the mass keep steady isPhysics-General
Physics-General
Maths-
A constant force = 3+ 2– 4 is applied at point A (1, –1, 2). Then vector moment of about point B (2,–1, 3) is -
A constant force = 3+ 2– 4 is applied at point A (1, –1, 2). Then vector moment of about point B (2,–1, 3) is -
Maths-General
Maths-
The vectors + 2+3, + 4+ 7 &–3–2 –5 are collinear, if =
The vectors + 2+3, + 4+ 7 &–3–2 –5 are collinear, if =
Maths-General
Maths-
If , , are non-coplanar vectors then
(+ –). (–) × (–)=
If , , are non-coplanar vectors then
(+ –). (–) × (–)=
Maths-General
Maths-
If a,b,c are different non- negative numbers and a+ a+ c; + and c+ c+ blie in a plane, then c is -
If a,b,c are different non- negative numbers and a+ a+ c; + and c+ c+ blie in a plane, then c is -
Maths-General