Physics
A round disc of moment of inertia I2 about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia I1 rotating with an angular velocity ω about the same axis. The final angular velocity of the combination of disc is
24
Aug
A round disc of moment of inertia I2 about its axis perpendicular to its plane and passing through its centre is placed over another disc of moment of inertia I1 rotating with an angular velocity ω about the same axis. The final angular velocity of the combination of disc is An electric fan has blades [...]
A stone tied to a string of length l is whirled in a vertical circle with the other end of the string at the centre. At a certain instant of time, the stone is at its lowest position and has a speed u. The magnitude of the change in velocity as it reaches a position, where the string is horizontal, is
24
Aug
A stone tied to a string of length l is whirled in a vertical circle with the other end of the string at the centre. At a certain instant of time, the stone is at its lowest position and has a speed u. The magnitude of the change in velocity as it reaches a position, [...]
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Chapter 10 - Circular Motion
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NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions
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A stone tied to a string of length l is whirled in a vertical circle with the other end of the string at the centre. At a certain instant of time ,
is ,
the stone is at its lowest position and has a speed u. The magnitude of the change in velocity as it reaches a position ,
where the string is horizontal ,
A stone is attached to one end of a string and rotated in a vertical circle. If string breaks at the position of maximum tension, it will break at
24
Aug
A stone is attached to one end of a string and rotated in a vertical circle. If string breaks at the position of maximum tension, it will break at A stone is attached to one end of a string and rotated in a vertical circle. If string breaks at the position of maximum tension it [...]
A metal ball of mass 2 kg moving with a velocity of 36 km/h has a head on collision with a stationary ball of mass 3 kg. If after the collision, the two balls move together, the loss in kinetic energy due to collision is
24
Aug
A metal ball of mass 2 kg moving with a velocity of 36 km/h has a head on collision with a stationary ball of mass 3 kg. If after the collision, the two balls move together, the loss in kinetic energy due to collision is A metal ball of mass 2 kg moving with a [...]
The position vector of a particle is r =(a cos ωt) i^+(a sin ωt) j^. The velocity vector of the particle is:
24
Aug
The position vector of a particle is r =(a cos ωt) i^+(a sin ωt) j^. The velocity vector of the particle is: The position vector of a particle is r =(acosωt)i^+(asinωt)j^. The velocity vector of the particle is: August 24, 2020 Category: Chapter 10 - Circular Motion , NEET Last 32 Years Solved 1988 - [...]
A particle of mass M is revolving along a circule of radius R and nother particle of mass m is revolving in a circle of radius r. If time periods of both particles are same, then the ratio of their angular velocities is
24
Aug
A particle of mass M is revolving along a circule of radius R and nother particle of mass m is revolving in a circle of radius r. If time periods of both particles are same, then the ratio of their angular velocities is A particle of mass M is revolving along a circule of radius [...]
An electric fan has blades of length 30cm as measured from the axis of rotation. If the fan is rotating at 1200 rev/min, the acceleration of a point on the tip of the blade is about
24
Aug
An electric fan has blades of length 30cm as measured from the axis of rotation. If the fan is rotating at 1200 rev/min, the acceleration of a point on the tip of the blade is about An electric fan has blades of length 30cm as measured from the axis of rotation. If the fan is [...]
A particle is moving along a circle of radius 20/π with constant tangential acceleration. The velocity of the particle is 80m/s at the end of 2nd revolution after motion has began. Then the tangential acceleration is
24
Aug
A particle is moving along a circle of radius 20/π with constant tangential acceleration. The velocity of the particle is 80m/s at the end of 2nd revolution after motion has began. Then the tangential acceleration is A body is whirled in a horizontal circle of radius 20 cm. It has angular velocity if 10 rad/s. [...]
Two racing cars of masses m and 4m are moving in circles of radii r and 2r respectively. If their speeds are such that each makes a complete circle in the same time, then the ratio of the angular speeds of the first to the second car is
24
Aug
Two racing cars of masses m and 4m are moving in circles of radii r and 2r respectively. If their speeds are such that each makes a complete circle in the same time, then the ratio of the angular speeds of the first to the second car is then the ratio of the angular speeds [...]
A ball of mass 0.25 kg attached to the ends of a strings of length 1.96 m is rotating in a horizontal circle. The string will break, if tension is more than 25 N. What is the maximum velocity with which the ball can be rotated?
24
Aug
A ball of mass 0.25 kg attached to the ends of a strings of length 1.96 m is rotating in a horizontal circle. The string will break, if tension is more than 25 N. What is the maximum velocity with which the ball can be rotated? A ball of mass 0.25 kg attached to the [...]