Question

a cylinder of m=0.53 kg and radiuS 0.32 m can rotate around an axis through its...

a cylinder of m=0.53 kg and radiuS 0.32 m can rotate around an axis through its center. the cylinder moment of inertial is given by MR^2 /2. the cylinder is initially at rest. A force of 0.70 N is then applied tangentially at the edge of the cylinder. how many radians will the cylinder rotate through during the first 2.5 seconds that the force is applied
0 0
Add a comment Improve this question Transcribed image text
Answer #1

\!\!\!\!\!\!\!\!\!$Moment of inertia of the cylinder, $I = \frac{MR^2}{2} = \frac{0.53\times (0.32)^2}{2}=0.027 $kgm$^2\\\\ $Torque on the cylinder due to the tangential force, $\\\\\tau = RF = 0.32\times 0.7 = 0.224$Nm$\\\\ $Torque is related to moment of inertia as, $\tau = I\alpha\\\\ $Angular acceleration of the cylinder, $\alpha = \frac{\tau}{I} =\frac{0.224}{0.027}=8.3$rad/s$^2\\\\ $Initial angular speed of the cylinder, $\omega_i = 0\\\\ $Angular displacement of the cylinder in the first 2.5s, $\\\\ \Delta \theta = \omega_i t + \frac{1}{2}\alpha t^2= \frac{1}{2}\times 8.3\times (2.5)^2=25.94$radians

Add a comment
Know the answer?
Add Answer to:
a cylinder of m=0.53 kg and radiuS 0.32 m can rotate around an axis through its...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • cylinder of m= 0.53 kg and a radius 0.32 m is rotating around an axis through...

    cylinder of m= 0.53 kg and a radius 0.32 m is rotating around an axis through its center. the cylinder’s moment of inertial is given by MR^2/2. The cylinder initially at rest. A force of 0.70n is then applied tangentially at the edge of the cylinder. How many radians will the cylinder rotate through in the first 2.5 seconds that the force is applied?

  • A 2.7-kg 12-cm-radius cylinder, initially at rest, is free to rotate about the axis of the...

    A 2.7-kg 12-cm-radius cylinder, initially at rest, is free to rotate about the axis of the cylinder. A rope of negligible mass is wrapped around it and pulled with a force of 18 N. (a) Find the magnitude of the torque exerted by the rope.   N · m (b) Find the angular acceleration of the cylinder.   rad/s2 (c) Find the angular velocity of the cylinder at t = 0.70 s. rad/s

  • A cylinder of radius 0.40 m and a mass of 12 kg has a string wound around it. The string is pulled off perpendicular to the radius, so that it doesn't slip while spooling off the cylinder, ma...

    A cylinder of radius 0.40 m and a mass of 12 kg has a string wound around it. The string is pulled off perpendicular to the radius, so that it doesn't slip while spooling off the cylinder, making the cylinder rotate around an axis through its center with a rotational acceleration of 0.60 rad/s. (The formula for the moment of rotational inertia for the cylinder in this situation is I-% mr, where "m" is the mass and "t" is the...

  • A disc as moment of inertia 4 kg · m² and a radius of 1.43 m...

    A disc as moment of inertia 4 kg · m² and a radius of 1.43 m revolves around a fixed, frictionless axis perpendicular to the disc and passing through the center of the disc. A force of 15 N is applied tangentially to the edge of the disc, which starts from the rest. Determine the angular velocity after the disk completes 2.7 revolution (s). Choose one: a)ω = 2.5 rad / s b)ω = 9.4 rad / s c)ω =...

  • A flywheel (a uniform solid cylinder of radius 0.25 m and mass 80 kg) is initially...

    A flywheel (a uniform solid cylinder of radius 0.25 m and mass 80 kg) is initially at rest, but free to rotate about the axis through its center. A belt wrapped around it is pulled off horizontally, providing a tangential force of 45 N to the outer rim of the flywheel for 2.00 s. Calculate the final kinetic energy of the wheel.

  • 2. A rigid sphere with mass 20 Kg and radius 0.6 m is free to rotate...

    2. A rigid sphere with mass 20 Kg and radius 0.6 m is free to rotate around a fixed axis passing through its center (I = 2/5 mR2). The sphere is initially at rest. A force of 4 N is applied at the edge (or equator) of the sphere, tangent to the sphere and perpendicular to the sphere radius, generating a constant torque for 3 s. (i) Calculate the magnitude of the angular acceleration of the sphere. (ii) Calculate the...

  • A carousel has a radius of 2 m and a moment of inertia of 500 kg·m²,...

    A carousel has a radius of 2 m and a moment of inertia of 500 kg·m², and can rotate around a frictionless axis. A person of 25 kg runs tangentially towards the edge of this carousel, which is at rest, with an initial velocity v = 2.5 m/s, and jumps into the toy. What is the final angular velocity of the person and the carousel together?

  • Figure shows a uniform disk that can rotate around its center like a merry-go-round. The disk...

    Figure shows a uniform disk that can rotate around its center like a merry-go-round. The disk has a radius of 2.00 m and a mass of 20 kg and is initially at rest. Starting at time t = 0, two forces are to be applied tangentially to the rim as indicated, so that at time t=1.25 s the disk has an angular velocity of 250 rad/s counterclockwise. Force F1 has a magnitude of 0.100 N. What is magnitude F2? TE

  • Problem 3: A merry-go-round can be considered a uniform disk of mass 145 kg and radius...

    Problem 3: A merry-go-round can be considered a uniform disk of mass 145 kg and radius 2.10 m free to rotate about a frictionless axis through its center. A 40.0 kg child stands at the edge and the system is initially rotating at 0.300 rad/sec. The child begins to walk around the edge of the merry-go-round with a velocity of 0.250 m/s relative to the ground in the direction of the rotation. What is the angular velocity of the merry-go-round...

  • 18. A thin-walled circular cylinder rotating around its axis has mass 160 kg and radius 0.34...

    18. A thin-walled circular cylinder rotating around its axis has mass 160 kg and radius 0.34 m. It was used as an energy storage flywheel. In order to accelerate the device from 10000 rpm to 18500 rpm in 10 s, what is the minimum force required, to be applied at the edge of the cylinder? A. 500N B. 1200N C. 2400N D. 4800N E. 5600N

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT