A scooter is going round a circular road of radius 100 m at a speed of 10 m/s. The angular speed of the scooter will be
In an atom for the electron to revolve around the nucleus, the necessary centripetal force is obtained from the following force exerted by the nucleus on the electron
A particle moves with constant speed v along a circular path of radius r and completes the circle in time T. The acceleration of the particle is
The maximum velocity (in ms–1) with which a car driver must traverse a flat curve of radius 150 m and coefficient of friction 0.6 to avoid skidding is
A car is moving with high velocity when it has a turn. A force acts on it outwardly because of
A motor cycle driver doubles its velocity when he is having a turn. The force exerted outwardly will be
The coefficient of friction between the tyres and the road is 0.25. The maximum speed with which a car can be driven round a curve of radius 40 m without skidding is (assume g = 10 ms–2)
An athlete completes one round of a circular track of radius 10 m in 40 sec. The distance covered by him in 2 min 20 sec is
A proton of mass 1.6 × 10–27 kg goes round in a circular orbit of radius 0.10 m under a centripetal force of 4 × 10–13 then the frequency of revolution of the proton is about
A particle is moving in a circle with uniform speed v. In moving from a point to another diametrically opposite point
In uniform circular motion
When a body moves in a circular path, no work is done by the force since,
Which of the following statements is false for a particle moving in a circle with a constant angular speed
If the radius of curvature of the path of two particles of same masses are in the ratio 1 : 2, then in order to have constant centripetal force, their velocity, should be in the ratio of
An object is moving in a circle of radius 100 m with a constant speed of 31.4 m/s. What is its average speed for one complete revolution
A body of mass 1 kg tied to one end of string is revolved in a horizontal circle of radius 0.1 m with a speed of 3 revolution/sec, assuming the effect of gravity is negligible, then linear velocity, acceleration and tension in the string will be
The acceleration of a train travelling with speed of 400 m/s as it goes round a curve of radius 160 m, is
A car of mass 800 kg moves on a circular track of radius 40 m. If the coefficient of friction is 0.5, then maximum velocity with which the car can move is
A 500 kg crane takes a turn of radius 50 m with velocity of 36 km/hr. The centripetal force is
In case of uniform circular motion which of the following physical quantity do not remain constant
What happens to the centripetal acceleration of a revolving body if you double the orbital speed v and half the angular velocity ω
A particle is moving in a circle of radius R with constant speed v, if radius is double then its centripetal force to keep the same speed should be
A stone ties to the end of a string 1m long is whirled in a horizontal circle with a constant speed. If the stone makes 22 revolution in 44 seconds, what is the magnitude and direction of acceleration of the stone
A particle describes a horizontal circle in a conical funnel whose inner surface is smooth with speed of 0.5 m/s. What is the height of the plane of circle from vertex of the funnel ?
What is the angular velocity of earth
