Chapter 9 – Rotation
The diameter of a flywheel is 1m. It has a mass of 20 kg. It is rotating about its axis with a speed of 120 rotations in one minute. Its angular momentum in kg.m^2/s is
30
Oct
The diameter of a flywheel is 1m. It has a mass of 20 kg. It is rotating about its axis with a speed of 120 rotations in one minute. Its angular momentum in kg.m^2/s is The diameter of a flywheel is 1m. It has a mass of 20 kg. It is rotating about its axis [...]
A particle performs uniform circular motion with an angular momentum L. If its angular frequency is halved and its kinetic energy is double, then the new angular momentum is
30
Oct
A particle performs uniform circular motion with an angular momentum L. If its angular frequency is halved and its kinetic energy is double, then the new angular momentum is A particle performs uniform circular motion with an angular momentum L. If its angular frequency is halved and its kinetic energy is double then the new [...]
A thin uniform circular disc of mass M and radius R is rotating in a horizontal plane about an axis passing through its centre and perpendicular to its plane with an angular velocity ω. another disc of the same dimensions but of mass M/4 is placed gently on the first disc coaxially. The angular velocity of the system now is
30
Oct
A thin uniform circular disc of mass M and radius R is rotating in a horizontal plane about an axis passing through its centre and perpendicular to its plane with an angular velocity ω. another disc of the same dimensions but of mass M/4 is placed gently on the first disc coaxially. The angular velocity [...]
A rotating body has angular momentum L. If its frequency is doubled kinetic energy is halved, its angular momentum will become
30
Oct
A rotating body has angular momentum L. If its frequency is doubled kinetic energy is halved, its angular momentum will become A rotating body has angular momentum L. If its frequency is doubled kinetic energy is halved its angular momentum will become October 30, 2020 Category: Chapter 9 - Rotation , MTG NEET Physics , [...]
A mass is whirled in a circular path with a constant angular velocity and its angular momentum is L. If the length of string is now halved keeping the angular velocity the same, the angular momentum is:
30
Oct
A mass is whirled in a circular path with a constant angular velocity and its angular momentum is L. If the length of string is now halved keeping the angular velocity the same, the angular momentum is: A mass is whirled in a circular path with a constant angular velocity and its angular momentum is [...]
The radius vector and linear momentum are respectively given by vector 2iˆ+2jˆ+kˆ and 2iˆ−2jˆ+kˆ. Then the angular momentum is
30
Oct
The radius vector and linear momentum are respectively given by vector 2iˆ+2jˆ+kˆ and 2iˆ−2jˆ+kˆ. Then the angular momentum is The radius vector and linear momentum are respectively given by vector 2iˆ+2jˆ+kˆ and 2iˆ−2jˆ+kˆ. Then the angular momentum is October 30, 2020 Category: Chapter 9 - Rotation , MTG NEET Physics , Part 1 ,
A rigid horizontal smooth rod AB of mass 0.75 kg and length 40 cm can rotate freely ab put a fixed vertical vertical axis through the midpoint O. Two strings each of mass 1 kg initially at rest are placed at a distance of 10 cm from O on either side of the rod. The rod is set in rotation with an angular velocity of 30 radian per sec and when the rings reach the ends of the rod, the angular velocity in rad/sec is?
30
Oct
A rigid horizontal smooth rod AB of mass 0.75 kg and length 40 cm can rotate freely ab put a fixed vertical vertical axis through the midpoint O. Two strings each of mass 1 kg initially at rest are placed at a distance of 10 cm from O on either side of the rod. The [...]
An athlete throws a discus from rest to a final angular velocity of 15 rads^−1 in 0.270s before releasing it. During acceleration, discuss moves a circular arc of radius 0.810m. Acceleration of discus before it is released is.
30
Oct
An athlete throws a discus from rest to a final angular velocity of 15 rads^−1 in 0.270s before releasing it. During acceleration, discuss moves a circular arc of radius 0.810m. Acceleration of discus before it is released is. An athlete throws a discus from rest to a final angular velocity of 15 rads^−1 in 0.270s [...]
A rigid body rotates about a fixed axis with variable angular velocity equal to(a – bt) at time t where a and b are constants. The angle through which it rotates before it comes to rest is
30
Oct
A rigid body rotates about a fixed axis with variable angular velocity equal to(a – bt) at time t where a and b are constants. The angle through which it rotates before it comes to rest is A rigid body rotates about a fixed axis with variable angular velocity equal to(a - bt) at time [...]
A wheel rotates with the constant acceleration of 2.0 rad/s^2 , if the wheel starts from rest the number of revolution it makes in first ten seconds is
30
Oct
A wheel rotates with the constant acceleration of 2.0 rad/s^2 , if the wheel starts from rest the number of revolution it makes in first ten seconds is A wheel rotates with the constant acceleration of 2.0 rad/s^2 if the wheel starts from rest the number of revolution it makes in first ten seconds is [...]