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A body moves in a circle of radius 4 m with constant speed 8 m/s experiences centripetal force 128 N. What is the mass of body?
If the body is moving in a circle of radius r with a constant speed v, its angular velocity is
Uniform circular motion is the direct consequence of
A body is moving along a circular path with variable speed. It has
A particle of mass m is executing uniform circular motion on a path of radius r. If P is the magnitude of its linear momentum, then, the radial force acting on the particle is,
A wheel rotates with a constant angular velocity of 600 r.p.m. What is the angle through which the wheel rotates in one second?
A disc of radius R=20 cm is rotating about its axis with an angular velocity rad on a horizontal smooth surface. The linear speed of point. C on the disc is
Which of given is correct formula of centripetal force
f a particle moves with uniform speed that its tangential acceleration will be
A particle comes round a circle of radius 1 m once. The time taken by it is 10 sec. The average velocity of motion is
Centripetal acceleration can be expressed as
A particle is moving on a circular path with constant speed, then its acceleration will be
A 500 kg car takes a round turn of radius 50 m with a velocity of 36 km/hr. The centripetal force is
For a particle in uniform circular motion the relation a = r a of accelerations hold. The acceleration ‘a’
The angular velocity of a wheel is 70 rad/sec. If the radius of the wheel is 0.5 m, then linear velocity of the wheel is
A car is moving with high velocity when it has a turn. A force acts on it outwardly because of
Angle 10 radian is equal to
A car travels north with a uniform velocity. It goes over a piece of mud which sticks to the tyre. The particles of the mud, as it leaves the ground are thrown
Angle between centripetal acceleration and radius vector is
The angular speed of a flywheel making 180 rpm is
In circular motion, if the angular velocity and angular acceleration becomes parallel, then the motion becomes:
An object is moving along a circular path of radius 4m. What will be its angular displacement if it moves 14m on this circular path?
A car is taking a turn on a level road. It may be thrown outwards because of the
A satellite moves at constant speed in a circular orbit about the earth. Which statement about the momentum and kinetic energy of the satellite is correct?
A string breaks if its tension exceeds 10 newtons. A stone of mass 250 gm tied to this string of length 10 cm is rotated in a horizontal circle. The maximum angular velocity of rotation can be
If E is the K.E of body moving in circle of radius r then the centripetal force may be written as
Work done due to centripetal force is
A particle is moving along a circular path with uniform speed. What is the angle between instantaneous velocity and acceleration?
The centripetal force required to keep the body in circular path is F. What would be centripetal force if radius becomes two times (keeping angular speed constant)
A flywheel rotates at constant speed of 3000 rpm. The angle described by the shaft in radian in one second is
If a particle moves in a circle, making equal angles in equal time its velocity
A particle moving in a horizontal circle with constant angular velocity will have
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
A particle is moving along a circular path of radius ‘R’ with uniform speed of 1 m/s, the time taken to complete one rotation is _____________sec.
A particle P is moving in a circle of radius ‘a’ with a uniform speed v. C is the centre of the circle and AB is a diameter. When passing through B the angular velocity of P about A and C are in the ratio
A body is whirled in a horizontal circle of radius 20 cm. It has angular velocity of 10 rad/s. What is its linear velocity at any point on circular path
Which of the following statements is false for a particle moving in a circle with a
In uniform circular motion, the factor that remains constant is
The angular speed of fly wheel making 120 rev / min is _______ in (rad/sec).
A point on the rim of a wheel 400 cm in diameter has a velocity of 1600 cm/s. The angular velocity of the wheel is
The direction of angular velocity of a body moving in a circle is
A body rotate with uniform speed in a circle of radius r and takes time T to complete one revolution. What are magnitudes of angular velocity w, the linear velocity v and acceleration a?
The linear velocity of a point on the equator is nearly (radius of the earth is 6400 km)
If a wheel of radius r turns through an angle of 30^{ o }, then the distance through which any point on its rim moves is
The linear acceleration of a car is 10m/s^{2}. If the wheels of the car have a diameter of 1m, the angular acceleration of the wheels will be
A wheel from 1 m diameter makes 60 rev/min. The linear speed of a point on its rim in m/s is
The force required to move a body of mass 1kg with velocity 10m/s along a circular path of radius 0.1m is
Which of the following graph is correct for a particle moving in a circle of radius r at a constant speed of 10 m/s?
A car of mass 1000 kg is moving with speed 72 km/h in a circular track of radius 100 m. The centripetal force acting on it is
If a satellite moves above Earth’s atmosphere in a circular orbit with constant speed, then
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