Physics, 27.03.2020 05:08 unknown9263

A light cable is wrapped around a solid cylinder of mass 50kg and diameter 0.12m. The cylinder rotates about a stationary axis. The cable is pulled with a constant force of 9.0N for a distance of 2.0m. The cable unwinds without slipping, turning the cylinder as it does. The cylinder is initially at rest. Find it angular velocity w and the final speed v of the cable.

Answers: 1

Show answers

Answers

Answer from: maskythegamer

The angular velocity is $w = 14\ rad /s$ and the final velocity is v = 0.84 m/s

Explanation:

From the question we are told that

The mass is m = 50kg

The diameter is d = 0.12m

The radius is $r = \frac{d}{2} = \frac{0.12}{2} =0.06m$

The force is F = 9.0N

The distance is s = 2.0m

The force is mathematically represented as

F = ma

9 = 50 * a

$a = \frac{9}{50}$

= 0.18m/s^2

From the Equation of motion we have

v^2 = u^2 +2as

is the final speed of the cable

substituting values we have

v^2 = 0 +2 (0.18)(2)

= 0.72 m^2 /s^2

$v = \sqrt{0.72}$

= 0.84 m/s

Now the linear velocity can be mathematically represented as

v = wr

now substituting values

0.84 = w * 0.06

=> $w = \frac{0.84}{0.06}$

= 14 rad/s

Answer from: araana24

the final velocity of the cable is 0.84m/s

the angular velocity is of the cable is 14rad/s

Explanation:

from the equation of motion

v^2 = u^2 + 2as

F = ma

9.0N = 50kg × a

a = 0.18m/s²

v^2 = u^2 + 2as

v² = 0 + 2(0.18)(2)

v² = 0.72m²/s²

v = √0.72m²/s²

v = 0.84m/s

Hence, the final velocity of the cable is 0.84m/s

v = rω

ω = v/r

r = d/2 = 0.12m/2

= 0.06m

ω = 0.84 / 0.06

= 14rad/s

Hence , the angular velocity is of the cable is 14rad/s

Answer from: Quest

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

Answer from: Quest

You will hear a hissing sound because of the carbon dioxide escaping the can or bottle

Other questions on the subject: Physics

Physics, 22.06.2019 03:00, ambercuevas2707

An internally reversible refrigerator has a modified coefficient of performance accounting for realistic heat transfer processes of where qin is the refrigerator cooling rate, qout is the heat rejection rate, and is the power input. show that copm can be expressed in terms of the reservoir temperatures tc and th, the cold and hot thermal resistances rt, c and rt, h, and qin, as where rtot rt, c rt, h. also, show that the power input may be expressed as 1.39 a household refrigerator operates with cold- and hot-temperature reservoirs of tc 5 c and th 25 c, respectively. when new, the cold and hot side resistances are rc, n 0.05 k/w and rh, n 0.04 k/w, respectively. over time, dust accumulates on the refrigeratorâ€™s condenser coil, which is located behind the refrigerator, increasing the hot side resistance to rh, d 0.1 k/w. it is desired to have a refrigerator cooling rate of qin 750 w. using the results of problem 1.38, determine the modified coefficient of performance and the required power input w under (a) clean and (b) dusty coil conditions. internally reversible refrigerator qout qin w high-temperature reservoir low-temperature reservoir th th, i tc, i tc high-temperature side resistance low-temperature side resistance w qin th tc qinrtot tc qinrtot copm tc qinrtot th tc

Answers: 2

continue

Physics, 22.06.2019 10:30, tyw3366812778

Awoman holds a book by placing it between her hands such that she presses at right angles to the front and back covers. the book has a mass of m = 1.8 kg and the coefficient of static friction between her hand and the book is μs = 0.67. no attempt 50% part (a) what is the weight of the book, fgb in newtons?

Answers: 3

continue

Physics, 23.06.2019 02:20, tmrodriguez1

If 130 j of energy were added to 1 kg of each of the samples listed in the answer choices, which would experience the greatest temperature increase

Answers: 2

continue

Physics, 23.06.2019 02:40, nope58

An impulse is the product of the on an object and time during which it is applied

Answers: 2

continue

You know the right answer?

A light cable is wrapped around a solid cylinder of mass 50kg and diameter 0.12m. The cylinder rotat...