ZuoTi.Pro
Question

disk that initially spins at 2 revolutions/sec is braked uniformly to a stop in ½ second, what is the value of angular acceleration α ? (Negative a means stopping) 8T/sec -4π / sec 4π / sec2 8T/ see Submit Answer Tries o/2

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

we have ust 口.. 2( A f oZ@.5)

0 0
Add a comment
Know the answer?
Add Answer to:
disk that initially spins at 2 revolutions/sec is braked uniformly to a stop in ½ second,...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

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

  • There is a disk rotating with a constant angular speed of 18 rad/sec. At some instant...

    There is a disk rotating with a constant angular speed of 18 rad/sec. At some instant the disk begins to experience a constant friction resulting in an angular acceleration of 1.4 rad/sec2 Find: 1) the time (in sec) it takes the disk to come to a complete stop due to friction 2) total number of complete revolutions the disk undergoes before coming to a complete stop due to friction; 3) the time (in sec) it takes the disk to complete...

  • A circular disk initially at rest experiences a uniform angular acceleration through 2 revolutions in 10...

    A circular disk initially at rest experiences a uniform angular acceleration through 2 revolutions in 10 s. If angular velocity at the end if 10 s is 2.5 rad/s what was the uniform angular acceleration

  • 3. A circular disk of radius 2 cm slides at a speed 10 cm/sec in the...

    3. A circular disk of radius 2 cm slides at a speed 10 cm/sec in the direction of (t) (3, 4). As it slides it spins counterclockwise at 3 revolutions per second. Initially (ie, t = 0), the center of the disk is at the origin, O- (0,0). Find parametric equations for the trajectory of the point P on the edge of the disk, which is initially at (2,0). (Hint: Split the motion into sliding(i.e. translation) of the center and...

  • Due in 1 hour, 11 minutes A high-speed sander has a disk 7.30 cm in radius...

    Due in 1 hour, 11 minutes A high-speed sander has a disk 7.30 cm in radius that rotates about its axis at a constan per second rate of 1210 revolutions per minute. Determine the angular speed of the disk in radians Submit Answer Tries 0/10 Determine the linear speed of a point 2.30 cm from the disk's center Submit Answer Tries o/10 Determine the centripetal acceleration of a point on the im Submit Aww This O/10 Determine the total stance...

  • R r up Left Right Down A spinning disk is rotating at a rate of 2 rad/s in the counterclockwise d...

    r r up Left Right Down A spinning disk is rotating at a rate of 2 rad/s in the counterclockwise direction as shown in the figure. What is the direction of the angular velocity vector? Incorrect right Incorrect down Correct: up Incorrect left s answer now shown above. You are correct. receipt no. is 160-4295 If the disk is speeding up at a rate of 2 rad/s2, what is the direction of the angular acceleration vector? Incorrect down Incorrect left...

  • CHW11 Chapter 17 Second part Problem 17.115 < 10 of 10 > Review Acurd is wrapped...

    CHW11 Chapter 17 Second part Problem 17.115 < 10 of 10 > Review Acurd is wrapped around each of the two 16-kg disks. They are released from rest Suppo hat 35 mm Neglect the mass of the cord (Figure 1) - Part A Determine the angular acceleration of disk 4 measured clockwise Express your answer using three significant figures. Enter positive value of the angular acceleration is clockwise and negative value if the angular acceleration is counterclockwise. AE VC ROO?...

  • Part : Problem Solving (12 points each) Instructions: Solve all four problems. 1. The Schwerer Gustav...

    Part : Problem Solving (12 points each) Instructions: Solve all four problems. 1. The Schwerer Gustav was a huge railway gun used in wW II. The railway gun had an unloaded mass of 1.35 x 10° kg and fired shells with a mass of 7000 kg. If both the gun and the shell were stationary to start and the shell is fired at 820 m/s, what is the recoil velocity of the gun? 2. A 850 kg car initially going...

  • Review Learning Goal: To practice Problem-Solving Strategy 4.1 for projectile motion problems. A rock thrown with...

    Review Learning Goal: To practice Problem-Solving Strategy 4.1 for projectile motion problems. A rock thrown with speed 12.0 m/s and launch angle 30.0° (above the horizontal) travels a horizontal distance of d 19.0 m before hitting the ground. From what height was the rock thrown? Use the value g = 9.800 m/s for the free-fall acceleration. Find the height y, from which the rock was launched. Express your answer in meters to three significant figures. View Available Hint(s) Review Peregrine...

  • please answer all my questions !! please answer all my questions !! please answer all my...

    please answer all my questions !! please answer all my questions !! please answer all my questions !! please answer all my questions !! please answer all my questions !! please answer all my questions !! please answer all my questions !! please answer all my questions !! please answer all my questions !! Review A bullet is shot through two cardboard disks attached a distance D apart to a shaft turning with a rotational period T as shown. Derive...

  • Interactive Exercises 2.14: Acceleration and Velocity Plots (Monster RC Truck) A radio-controlled (RC) truck moves along...

    Interactive Exercises 2.14: Acceleration and Velocity Plots (Monster RC Truck) A radio-controlled (RC) truck moves along an x axis with an acceleration that depends on time in a manner shown in the graph in Interactive Fig. 2.14.1 below. At the instant0 the velocity of the truck is -1 m/s and its position is at the origin a (m/s) 0, 1 (s) 10 Interactive Figure 2.14.1: The acceleration versus time plot for an RC truck that moves on an axis. ▼...

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