Question 2 :
A wheel has moment of inertia 5 x $10^{-3} kg m^2$ and is making 20 rev/sec. The torque needed to stop it in 10 sec is ................ x $10^{-2}N -m$ :-
Question 3 :
The instantaneous velocity of a point on the outer edge of a disk with a diameter of 4 m that is rotating at 120 revolutions per minute is most nearly:
Question 8 :
A particle moves along a circular path of radius $r$ with uniform speed $v$. The angle described by the particle in one second is given by:<br/>
Question 9 :
The angular velocity of a wheel is $70\;rad/s$. If the radius of the wheel is $0.5\;m$, then linear velocity of the wheel is
Question 10 :
A person is at the equator of the earth. Due to the spinning motion of earth, the linear velocity of the person is $Kms^{-1}$ :<br/>
Question 12 :
The average angular velocity of the spinning motion of the Earth in <span>$rads^{-1}$</span> will be :<br/>
Question 13 :
Two particles having mass $M$ and $m$ are moving in circular paths having radii $R$ and $r$. If their time periods are same then the ratio of their angular velocities will be :<br/>
Question 14 :
The moment of inertia of a disc of radius 0.5 m about its geometric axis is 2 kg-$m^2$. If a string is tied to its circumference and a force of 10 Newton is applied, the value of torque with respect to this axis will be :-
Question 15 :
The angular rim of a wheel $400$ cm in diameter has a velocity of $1600 \ {cm s}^{–1}$. The angular velocity of the wheel is:<br/>
Question 16 :
<span>The angular velocity (in rad/s) of a body rotating at N r.p.m. is</span>
Question 19 :
O<span>ne oscillation completed by a vibrating body in one second is known as:</span>
Question 20 :
A car is travelling at a given instant 40 m/s on a circular road of radius 400 m. Its speed is increasing at the rate 3 m/s. Its  acceleration is
Question 21 :
The angular velocity ($\omega$ of a particle is related to the linear velocity$v$ of the particle moving in a circular motion or radius R using the formula
Question 22 :
The linear velocity of a particle at the N- pole of the earth due to its rotation is:<br/>
Question 23 :
A particle is moving with uniform speed along a circle of radius $20$ cm. If angular velocity of particle is $5\ rad s^{–1}$ then its speed is:<br/>
Question 24 :
A motor cyclist takes a U-turn in $4$ seconds. His angular velocity will be _______ $rads^{-1}$.<br/>
Question 25 :
A fly-wheel is rotating about its own axis at an angular velocity $11\ rad/s$. Its angular velocity in revolution per minute ($rpm$) is:<br/>