LMS

The distance of a planet from the sun is 5 times the distance between the earth and the sun. The time period of the planet is:

If the body is moving in a circle of radius r with a constant speed v, its angular velocity is:

The ratio of angular speeds of minute hand and hour hand of a watch is:

A particle is moving along a circular path. Let v, w, a and ac be its linear velocity, angular velocity, angular acceleration and centripetal acceleration respectively. Which is the wrong statement from the followings?

A geostationary satellite above equator of earth is at a height of:

A body is rotating in circle of radius r. Keeping period of rotation constant but radius is doubled (2r) then centripetal force become:

Radius of geostationary satellite is:

The relation between the linear velocity and angular velocity is.

If we whirl a stone at the end of a string in the vertical circle, it is likely to break when the stone is:

A motor cyclist is moving inside spherical cage of radius 5m. The minimum speed with which he must pass the highest point is:

1 radian is equal to

In circular motion, if the angular velocity and angular acceleration becomes parallel, then the motion becomes:

A car rounds a 20-m radius curve at 10 m/s. The magnitude of its acceleration is:

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

Centripetal force may be equal to

What is outward force acting on a mass of 10 kg when rotating at one end on an inelastic string 10m long at speed of 1m/s?

The angle subtended by an arc equal to radius is

The angular velocity of a wheel increases from 100 rps to 300 rps in 10s. The number of revolutions made during that time is

The tension in the string revolving in a vertical circle with a mass m at the end which is at the lowest position.

One end of the string of length 1.0 m is tied to a body of mass 0.5 kg. It is whirled in a vertical circle as shown in figure below. If the angular frequency of the body is 4 rad/s , what is the tension in the string when the body is at the topmost point A? Take g = 10 ms^-2.

A bucket filled with water is revolved in vertical circle of radius 4m. speed of bucket at highest point just to avoid fall of water is

The direction of centripetal force is

If the earth shrinks to half the present radius , without any change in mass , then the duration of day and night becomes

Direction of angular acceleration is always along:

When a body moves in a circle , the angle between linear velocity and angular is:

A wheel of diameter 1 m makes 60 rev/min. The linear speed of a point on its rim in m/s is

Average density of the earth

A particle moves in a circular path of radius r. In half the period of revolution, its displacement and distance covered are:

A ring is rolling on an inclined plane. The ratio of the linear and rotational kinetic energies will be.

Two artificial satellites of unequal masses are revolving in a circular orbit around the earth with a constant speed. Their time periods:

A string can withstand a tension of 25N. What is the greatest speed at which a body of mass 1 kg can be whirled in a horizontal circle using 1 m length of the string?

A girl sits near the edge of a rotation circular platform. If the girl moves from circumference towards the centre of the platform, then the angular velocity of the platform will

The weight of an object in coal mine, at equator and at the pole of earth is W₁, W₂and W₃ respectively. Then

Rotatory motion of a body is produced by applying a

If the force applied on a particle is zero then the quantities which are conserved are

Which of given is correctly related the orbital radius and period of rotation of satellite?

An elevator weighing 3.5×10⁶N is raised to a height of 1000 m in the absence of friction, the work done is

A wheel of radius 50cm having an angular speed 5 rad/sec will have linear speed:

A fly wheel rotates at a constant speed of 3000rpm. The angle described by the shaft in radian in one second is:

A string can withstand a tension of 25N. What is the greatest speed at which a body of mass 1 kg can be whirled in a horizontal circle using 1 m length of the string?

A point on the rim of a wheel 4 m in diameter has a velocity of 1600 cm s–1. The angular velocity of the wheel is

Angular speed of second’s hand of mechanical watch in rad/min is

A fan is making 600 revolutions per minute. If after some time it makes 1200 revolutions per minute, then increase in its angular velocity is

If a particle moves in a circle describing equal angles in equal times, its velocity vector

A bucket filled with water is revolved in vertical circle of radius 4m. speed of bucket at highest point just to avoid fall of water is

A ball of mass m and radius r is released in a viscous liquid. The value of its terminal velocity is proportional to

For a particle moving in a horizontal circle

A motor car of mass m travels with a uniform speed on a circular bridge of radius r. When the car is at the highest point of the bridge, then the force exerted by the car on the bridge is

Close orbiting satellites orbit the earth at a height of

A body is moving in a circular path with constant speed. The magnitude of tangential and centripetal acceleration are