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When an object moves with a uniform angular velocity, then its instantaneous angular velocity is equal to:
NET
NUST Entry Test
Physics
Circular Motion
The angular speed of a particular moving along a circular path is $5\pi rad sec^{-1}$. Its period of motion is:
NET
NUST Entry Test
Physics
Circular Motion
Angular velocity is:
NET
NUST Entry Test
Physics
Circular Motion
In rotational motion, angular of force F is called:
NET
NUST Entry Test
Physics
Circular Motion
A wheel of diameter 100 cm makes 0.5 rev $sec^{-1}. The linear speed of a particle on its rim is:
NET
NUST Entry Test
Physics
Circular Motion
Angular speed for the daily rotation of Earth in radian per hour is:
NET
NUST Entry Test
Physics
Circular Motion
Circular motion is an example of motion in:
NET
NUST Entry Test
Physics
Circular Motion
The useful unit of angular displacement in SI unit is:
NET
NUST Entry Test
Physics
Circular Motion
The circumference of a circle is equal to:
NET
NUST Entry Test
Physics
Circular Motion
Radian is defined as the angle subtended at the centre of a circle by an arc of:
NET
NUST Entry Test
Physics
Circular Motion
A wheel, 2 m in diameter, makes 15 rev/min, the linear speed of point on its rim (in m/sec) is:
NET
NUST Entry Test
Physics
Circular Motion
A body moving along the circumference of a circle of radius R completes one revolution. The radius of the covered path to the angle subtended at the centre is:
NET
NUST Entry Test
Physics
Circular Motion
A flywheel accelerates from rest to an angular velocity of 7 rad/sec in 7 seconds. Its average acceleration will be:
NET
NUST Entry Test
Physics
Circular Motion
A car is turning around a corner at 10 m/sec as it travels along an arc of a circle. If value of centripetal acceleration is 10 $m/sec^{2}$ in this case, find radius of the circular path:
NET
NUST Entry Test
Physics
Circular Motion
If a toy car moves with a uniform speed of 2 m/sec in a circle of 0.4 m radius. His angular velocity in rev/sec is:
NET
NUST Entry Test
Physics
Circular Motion
A 1000 kg car travelling with a speed of 90 km/hr turns around a curve of radius 0.1 km. The necessary centripetal force comes out to be:
NET
NUST Entry Test
Physics
Circular Motion
A rotating wheel accelerates up to the value of 0.75 $rev/sec^{2}$ after 2 seconds of its start. Its angular velocity becomes:
NET
NUST Entry Test
Physics
Circular Motion
The rear wheels of an automobile are rotating with an angular velocity of 14 rev/sec which is reduced to 38 rad/sec in 5 seconds when brakes are applied. Its angular acceleration is:
NET
NUST Entry Test
Physics
Circular Motion
A toy car moves around a circular track of radius 0.3 m at the rate of 120 rev/min. The speed v of the car is:
NET
NUST Entry Test
Physics
Circular Motion
A stone tied to the end of a 20 cm long string is whirled in a horizontal circle. If centripetal acceleration is 9.8 $m/sec^{2}$, then its angular velocity in rad/sec is:
NET
NUST Entry Test
Physics
Circular Motion
Centripetal force performs:
NET
NUST Entry Test
Physics
Circular Motion
A rotating body tends to be slower, when its angular acceleration is:
NET
NUST Entry Test
Physics
Circular Motion
When a body moves along a circular path with constant speed, it has an acceleration, which is always directed:
NET
NUST Entry Test
Physics
Circular Motion
One radian is equal to:
NET
NUST Entry Test
Physics
Circular Motion
When angular acceleration is positive, the body rotates:
NET
NUST Entry Test
Physics
Circular Motion
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