Ask a New Question

Question

A 4.50-kg wheel that is 34.5 cm in diameter rotates through an angle of 13.8 rad as it slows down
uniformly from 22.0 rad/s to 13.5 rad/s. What is the magnitude of the angular acceleration of
the wheel?
A) 0.616 rad/s
2
B) 22.5 rad/s
2
C) 5.45 rad/s
2
D) 10.9 rad/s
2
E) 111 rad/s
2
13 years ago

Answers

ajayb
W2^2 = W1^2 + 2*alpha*theta
13.5^2 = 22.0^2 +2*alpha*13.8
alpha = (13.5^2 - 22.0^2)/2*13.8
= - 10.9 rad/s^2
So, magnitude of angular acceleration = 10.9 rad/s^2
13 years ago

Related Questions

A wheel with an I of 5.00 kg-m^2 starts at rest & accelerates under a constant torque of 3 N-M for 8... When a 19.9 kg wheel with an angular speed of 3.10 rad/s is disconnected from a motor, a 0.124 N ยท m... please help...A wheel 1.0m in diameter is rotating about a fixed axis with an initial angular veloc... A 0.500 kg wheel that has a moment of inertia of 0.015 kg m^2 is initially turning at 30 rev/s. it s... Please help.. A wheel with radius 3 cm is being pushed up a ramp at a rate of 6 cm per second. The... you buy a new wheel for your bicycle. The diameter of the bicycle wheel is 22 inches. Answer the que... he front wheel of a high-wheel bicycle from the late 1800s was larger than the rear wheel to increas... Which of these is a wheel & axle? A. Doorknob B. Hammer C. Nail D. Oar wheel with 3 5 and 4 what is the chance it lands on an odd number then lands on 4
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use