Recent questions tagged uniform-circular-motion

$\begin{array}{1 1}\text{Given the following 2 statements ,which of the following choices is correct?}\\\text{Statement-1: In a uniform circular motion,the acceleration is always directed towards the centre of the circle.}\\\text{Statement-2: Otherwise the speed of the body moving along the circle will change with time}\end{array}$

asked Aug 14, 2014 by sreemathi.v

1 answer

Given the following 2 statements, which of the following choices is correct?

asked Aug 14, 2014 by sreemathi.v

1 answer

A car exhibits a constant acceleration of $0.300 m/s^2$ parallel to the roadway. The car passes over a rise in the roadway such that the top of the rise is shaped like a circle of radius $500\; m$. At the moment the car is at the top of the rise, its velocity vector is horizontal and has a magnitude of $6.00\; m/s$. What is the direction of the total acceleration vector for the car at this instant?

asked Aug 14, 2014 by sreemathi.v

1 answer

An object is moving around a circle of radius 1.5 meters at a constant velocity of 7 meters per second.The frequency of the motion,in revolutions per second,is

asked Aug 14, 2014 by sreemathi.v

1 answer

A stereo turntable has a frequency of 33 revolutions per minute.A record of radius 15.25 centimeters is placed on the turnable and begins to rotate.The velocity of a point on the edge of the record is

asked Aug 14, 2014 by sreemathi.v

1 answer

A typical carnival ferris wheel has a radius of 9.0m and rotates 4.0 times per minute.What magnitude acceleration do the riders experience?

asked Aug 14, 2014 by sreemathi.v

1 answer

In 3 seconds,an object moving around a circle sweeps out an angle of 9 radians.If the radius of the circle is 0.5 meter,the centripetal acceleration of the object is

asked Aug 14, 2014 by sreemathi.v

1 answer

The direction of the angular velocity vector is along

asked Nov 25, 2013 by meena.p

1 answer

A wheel is rotating at $900 \;rpm$ about its axis. When the power is cut off, it comes to rest in 1 minute. The angular retardation in $rad/s^2$ is

asked Nov 25, 2013 by meena.p

1 answer

The wheel of a car is rotating at the rate of 1200 revolutions per minute. On pressing the acceleration for 10 seconds, it starts rotating at 4500 revolutions per minute. The angular acceleration of the wheel is

asked Nov 25, 2013 by meena.p

1 answer

When a ceiling fan is switched on, it makes 10 rotations in the first 3 seconds. Assuming uniform angular acceleration, of how many revolutions it will make in the next 3 seconds?

asked Nov 25, 2013 by meena.p

1 answer

A wheel rotates with a constant acceleration of $2.0\;radians /s^2$. If the wheel starts from rest, the number of revolutions it makes in the first $10$ seconds will be approximately

asked Nov 25, 2013 by meena.p

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A wheel has a speed of 1200 revolution per minute and is made to slow down at a rate of $4\;radian/s^2$. The number of revolutions it makes before coming to rest is

asked Nov 25, 2013 by meena.p

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If a fly wheel makes 120 revolutions per minute then its angular speed will be

asked Nov 25, 2013 by meena.p

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Starting from rest, a particle rotates in a circle of radius $R=\sqrt 2 m$ with an angular acceleration $a=\large\frac{\pi}{4} $$rad/s^2$. The magnitude of average velocity of particle over time when it rotates quarter circle is

asked Jun 27, 2013 by meena.p

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A ball of mass m is attached to one end of a light rod of length $l$, other end of which is hinged . What minimum velocity 'v' should be imparted to the ball downwards so that it can complete the circle

asked Jun 27, 2013 by meena.p

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