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 [...]
A flywheel rotates with a uniform angular acceleration. Its angular velocity increases from 20πrad/s to 40πrad/s in 10 seconds. How many rotations did it make in this period ?
30
Oct
A flywheel rotates with a uniform angular acceleration. Its angular velocity increases from 20πrad/s to 40πrad/s in 10 seconds. How many rotations did it make in this period ? A flywheel rotates with a uniform angular acceleration. Its angular velocity increases from 20πrad/s to 40πrad/s in 10 seconds. How many rotations did it make in [...]
When a ceiling fan is switched on, it makes 10 revolutions in the first 3 seconds. Assuming a uniform angular acceleration, how many rotation it will make in the next 3 seconds?
30
Oct
When a ceiling fan is switched on, it makes 10 revolutions in the first 3 seconds. Assuming a uniform angular acceleration, how many rotation it will make in the next 3 seconds? how many rotation it will make in the next 3 seconds? it makes 10 revolutions in the first 3 seconds. Assuming a uniform [...]
A string is wound round the rim of a mounted flywheel of mass 20kg and radius 20cm. A steady pull of 25N is applied on the cord. Neglecting friction and mass of the string, the angular acceleration of the wheel is
30
Oct
A string is wound round the rim of a mounted flywheel of mass 20kg and radius 20cm. A steady pull of 25N is applied on the cord. Neglecting friction and mass of the string, the angular acceleration of the wheel is A string is wound round the rim of a mounted flywheel of mass 20kg [...]
A constant torque of 31.4 N−m is exerted on a pivoted wheel. If angular acceleration of wheel is 4π rad/s^2, then the moment of inertia of the wheel is
30
Oct
A constant torque of 31.4 N−m is exerted on a pivoted wheel. If angular acceleration of wheel is 4π rad/s^2, then the moment of inertia of the wheel is A constant torque of 31.4 N−m is exerted on a pivoted wheel. If angular acceleration of wheel is 4π rad/s^2 then the moment of inertia of [...]