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angular speed

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17 articles trouvés pour ce sujet.
 
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Angular speed 2017-01-21
Kenzi pose la question :
A wheel of radius 14 inches is rotating 45°/sec. What is the linear speed in in/sec and the angular speed in RPM? (Round your answers to three decimal places)

I already found the linear speed. I got 10.996 in/sec. I don't know how to find the angular speed.

Penny Nom lui répond.
Revolutions per minute 2014-10-24
Edward pose la question :
Hello; I have a 28.2 inch diameter tire; do not worry about engine RPM or gear ratios, please tell me what the RPM of that tire is at 8 MPH and 64 MPH. Thank you.

Sincerely; Edward

Penny Nom lui répond.
Angular speed 2014-06-29
andrea pose la question :
a wheel having a radius of 10cm rotates such that the linear speed at its rim is 30mls. what is the angular speed of the wheel in rpm?
Penny Nom lui répond.
Revolutions per second 2012-10-18
Crystal pose la question :
Suppose a car wheel is 26 inches in diameter.
a) If the tire completes one rotation, how far would the car travel?
b) If the car is traveling at 60 miles per hour, how fast is the car wheel spinning in revolutions per second?

Penny Nom lui répond.
Angular speed 2010-12-12
Jason pose la question :
7 in. pulley traveling @ 175ft/sec. What is the rpm?
Stephen La Rocque and Penny Nom lui répond.
Angular speed 2010-12-03
Julie pose la question :
If the angular speed of a circle is 360 degrees divided by the time it took to rotate, how do I calculate ones that have greater rotations than the amount of time? I mean, you calculate the angular speed of a merry-go-around that spins once every 5 seconds by doing 360degrees/5 sec, but how do you calculate a merry-go-around that has 16 rotations every 4 seconds?
Penny Nom lui répond.
Angular speed 2009-11-19
Atalie pose la question :
The engine of a sports car rotates at 5000 revolution per minute. Calculate the angular speed of the engine in radians per second, given that 2pi radians = 1 revolution
Robert Dawson lui répond.
Angular speed 2009-08-04
Mary pose la question :
The engine of a sports car rotates at 5000 revolutions per minute (rpm). Calculate the angular speed of the engine in radians per second. Use 2 radians = 1 revolution.
Penny Nom lui répond.
Angular & Linear Speed from a Sine Graph 2008-08-19
Kim pose la question :
Kim, a student: I am given a graph with a wave. The amplitude is 5cm and the period is 4cm. I am suppose to find the angular speed. What I need to know is the formula for angular speed and how do I use these numbers to get the correct answer.
Janice Cotcher lui répond.
The current in a river 2008-06-12
Joi pose la question :
To approximate the speed of the current of a river, a circular paddle wheel with radius 4 feet is lowered into the water. If the current causes the wheel to rotate at a speed of 10 revolutions per minute, what is the speed of the current? Express your answer in miles per hour.
Harley Weston lui répond.
Radians 2008-02-08
Brian pose la question :
I'm teaching Precalculus right now and will be covering the formula to convert angular speed into linear speed. My question is about the units involved. Using v=rw, if r is mearsured in feet and w is measured in radians/second then v is measured in ft/sec. What happened to the units of radians? I can't find a good way to explain why they are not part of units for velocity. Do you have a good explanation? Thanks,
Stephen La Rocque lui répond.
Radial motion 2007-11-13
abdulai pose la question :
a circular saw with diameter 18.4cm rotates at 2400rpm. What is the angular speed of a point on the edge of the saw blade in radians per second?
Penny Nom lui répond.
Angular speed 2007-08-05
Virginia pose la question :
the engine of a sports car rotates at 5,000 revolutions per minute (rpm). calculate the angular speed of the engine in radians per second. use 2n radians = 1 revolution
Stephen La Rocque lui répond.
Angular speed 2007-01-18
Cristina pose la question :
A car is moving at a rate of 50 miles per hour, and the diameter of its wheels is 2.5 feet.
a) Find the number of revolutions per minute the wheels are rotating.
b) Find the angular speed of the wheels in radians per minute.

Stephen La Rocque lui répond.
Angular speed 2007-01-06
Robert pose la question :
A rear wheel and tire on a John Deere 8520 farm tractor has a 39-in. radius. Find the angle (in radians) through which a wheel rotates in 12 sec if the tractor is traveling at a speed of 22 mph.
Penny Nom lui répond.
Angular speed 2006-10-04
Jack pose la question :
A horse on a merry-go-round is 7m from the center and travels at a speed of 10km/h. What is its angular speed?
Stephen La Rocque lui répond.
Angular speed 2004-02-01
Rachel pose la question :
A 4 inch pulley on a motor makes 1500 revolutions/minute. It is connected to an 8 inch saw blade. a. Find the angular speed of the pulley in radians/minute

b. Find the angular speed of the saw in radians/ minute

Harley Weston lui répond.
 
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