A uniform cylindrical wheel, with a radius of 8.50 cm and a mass of 0.580 kg is observed slowing from 1500 rpm to rest in 55s. Calculate the applied torque needed to accelerate the wheel from rest to 1500 rpm in 5.00 s
Question
A uniform cylindrical wheel, with a radius of 8.50 cm and a mass of 0.580 kg is observed slowing from 1500 rpm to rest in 55s. Calculate the applied torque needed to accelerate the wheel from rest to 1500 rpm in 5.00 s
Solution
Primero, necesitamos convertir las unidades de la velocidad angular de rpm a rad/s.
-
Conversión de rpm a rad/s:
-
Cálculo de la aceleración angular: La aceleración angular () se puede calcular usando la fórmula: donde es el cambio en la velocidad angular y es el tiempo.
-
Momento de inercia del cilindro: El momento de inercia () de un cilindro uniforme alrededor de su eje es: donde es la masa y es el radio.
-
Cálculo del torque aplicado: El torque () necesario se puede calcular usando la fórmula:
Por lo tanto, el torque aplicado necesario para acelerar la rueda desde el reposo hasta 1500 rpm en 5.00 s es aproximadamente .
Similar Questions
A wheel is rotating about an axis through its centre at 720 rpm. It is acted on by a constant torque opposing its motion for 8 second to bring it to rest finally. The value of torque in Nm is :– (given )
The driving wheel of a car travelling at a constant velocity has a torque of 137 N m applied to it by the axle that drives the car (Figure 4.26). The radius of the tyre is 0.18 m. Calculate the driving force provided by this wheel.
A body of moment of inertia 2 kg m2 is rotated at a speed of 25 rad s–1. A tangential force at rim stops the wheel in10 s. Average torque of force
An 8.00 kg object has a moment of inertia of 1.50 kg m2. If a torque of 2.00 N•m is applied to the object, the angular acceleration is
A baseball pitcher loosens up his pitching arm. He tosses a 0.15-kg ball using only the rotation of his forearm, 0.26 m in length, to accelerate the ball. If the ball starts at rest and is released with a speed of 23 m/s in a time of 0.4 s, what torque is applied to the ball while being held by the pitcher's hand to produce the angular acceleration?Select one:a.3.3 N·mb.33.2 N·mc.22.4 N·md.221.2 N·me.2.2 N·m
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.