Lab #8 Rotational Motion

1. List the kinematic equations you would choose to use in each of the following situations (i.e. the most reasonable equations). a. Translation: a = 4 ft/s? b. Rotation: a = 10 rad/s c. Translation: a= 2 cos e ft/s?, where 0 = 2t2 – 3 rad d. Rotation: a = 2r rad/s? For example, if asked for equations for a = 2t mph, I would note that acceleration is not constant, and I would need the general translation kinematic equations: dv dr v = - dt adr = vdv a =- dt

1. An object is spun around in circular motion such that it completes 100 cycles in 25 s. What is the period of its rotation? [0.25 s] b. If the radius is 0.3 m what is the velocity? [7.54 m/s] Draw an arrow indicating the direction of the velocity on the image. a. C. 2. An object completes 2500 cycles in 25 s. a. What is the period of its rotation? (001 s) b. Draw an arrow indicating the direction of the velocity on the image.

A centrifuge is spinning at 5400rpm and the radius of the centrifuge is 14cm what is the radial acceleration

A car tire is 62.0 cm in diameter. The car is traveling at a speed of 16.0 m/s. What is the tire's rotation frequency, in rpmrpm? What is the speed of a point at the top edge of the tire? What is the speed of a point at the bottom edge of the tire?

A ceiling fan is rotating 245 times each minute. a. What is its frequency? b. What is its period of rotation? c. What is its angular velocity? d. When the fan is turned off, it slows down at 2.50 rad/s2. How long will it take the fan to stop?

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A car tire is 61.0 cm in diameter. The car is traveling at a speed of 24.0 m/s. What is the tire's rotation frequency, in rpm? What is the speed of a point at the top edge of the tire? What is the speed of a point at the bottom edge of the tire?

An old-fashioned LP record rotates at 33 (1)/(3)rpm.a. What is its frequency, in rev/s?b. What is its period, in seconds?

Classroom il ? I 08:54 97% A docs.google.com The effective acceleration at a radius .6 r= 22 cm for a centrifuge rotating at 3000 rpm is a. 980 cm/sec2 b. 9.8 m/sec2 O c.220000 m/sec2 d.21691m/sec2 O Chest pain has its own resonant .16 frequency а. 3- 5 Hz O b. 5-7Hz O с. 3-7 Hz O d. 4-7 Hz

A worker laying cable for a company's Internet connections has a spool of Cat 7a cable. The spool has a radius of 0.350 m. The cable is unspooled by unwinding the spool turning it through 77.0 revolutions. How long is the cable when it is unwrapped from the spool? Select one: a. 27.0 m b. 169.m 4.29 m Od. 1,380.m C.

While visiting the Albert Michelson exhibit at Clark University, you notice that a chandelier (which looks remarkably like a simple pendulum) swings back and forth in the breeze once every T = 6.2 seconds. T = 6.2 seconds a. Calculate the frequency of oscillation (in Hertz) of the chandelier.  b. Calculate the angular frequency ω of the chandelier in radians/second.  c.  Determine the length L in meters of the chandelier.   d. That evening, while hanging out in J.J. Thompson’s House O’ Blues, you notice that (coincidentally) there is a chandelier identical in every way to the one at the Michelson exhibit except this one swings back and forth 0.11 seconds slower, so the period is T + 0.11 seconds. Determine the acceleration due to gravity in m/s2 at the club.

A motor accelerates the wheel attached to a pulley that rotates at 64rpm for one minute. then it increases the speed of the pulley to 128 rpm. a) Find the average angular acceleration. b) A point located 30 cm away from the middle point of the pulley, during this acceleration. how long it takes on. Hayır Bu bilgi faydalı mıydı?

Hi. I've been having difficulties with this question and I'd be thankful if I could get some help with it.  - A struggling physics student

A car makes a circular curve and travels a 45 ° arc in 2 seconds.a) What is the angular velocity (rad/s)?b) How long would it take to complete a circle (the period of the movement)?c)What is the frequency of this circular motion (Hz)?

(Question has already been answered) Can you explain this solution? Earth rotates complete one revolution in 24 hr. So, in 6 hr earth rotates = 1 x 6/24 = 0.25 rev = 0.25 x 2 x 3.14 = 1.57 rad Speed at equator = 6370 x 103 x (2 x 3.14 ) / (24 x 60 x 60) = 463.34 m/s     I can't understand this part: Speed at equator = 6370 x 103 x (2 x 3.14 ) / (24 x 60 x 60) = 463.34 m/s

A car’s tachometer records the rotational frequency of the crankshaft. A car engine is idling at 500 rpm. When the light turns green, the crankshaft rotation speeds up at a constant rate to 2500 rpm over an interval of 3.0 s. How many revolutions does the crankshaft make during these 3 s?

physics.com/myct/itemView?assignment ProblemID=189028739 2 W A 220 g block on a 60.0-cm-long string swings in a circle on a horizontal, frictionless table at 65.0 rpm. S 3 E D 20 C $ 4 888 IT D F % 5 MA T G 6 B ▼ Y Part A FO What is the speed of the block? Express your answer with the appropriate units. View Available Hint(s) Y D'H HÅ 3 Value Submit Part B Provide Feedback What is the tension in the string? Express your answer with the appropriate units. ► View Available Hint(s) Submit H Value MacBook Air μÅ 3 → & 7 F7 U N * Units 8 Units DII FB 1 pap ? M ? ( 9 K FO O ) O * 4 F10 - P -

Mass of Earth 5.97x10^24 kg Radius of Earth is 6.38x10^6

1) A child is on a merry-go-round which is rotating in uniform circular motion. The radius of the ride is 1.2 mn and the period is 5 seconds. a. What is the frequency? b. What is the child's centripetal acceleration?

How will I explain the cancellation of RPM here?