62. Just after a motorcycle rides off the end of a ramp and launches into the air, its engine is turning counterclockwise at 7700 rev/min. The motorcycle rider forgets to throttle back, so the engine's angular speed increases to 12 500 rev/min. As a result, the rest of the motor- cycle (including the rider) begins to rotate clockwise about the engine at 3.8 rev/min. Calculate the ratio Ig//m of the moment of inertia of the engine to the moment of inertia of the rest of the motorcycle (and the rider). Ignore torques due to gravity and air resistance.

62. Just after a motorcycle rides off the end of a ramp and launches into the air, its engine is turning counterclockwise at 7700 rev/min. The motorcycle rider forgets to throttle back, so the engine's angular speed increases to 12 500 rev/min. As a result, the rest of the motor- cycle (including the rider) begins to rotate clockwise about the engine at 3.8 rev/min. Calculate the ratio Ig//m of the moment of inertia of the engine to the moment of inertia of the rest of the motorcycle (and the rider). Ignore torques due to gravity and air resistance.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

6. A uniform disk turns at 3.3 rev/s around a frictionless central axis. A nonrotating rod is dropped onto the disk. The rod has the same mass as the disk and length equal to the diameter of the disk. The two objects then turn together at the same rate with the centers lined up vertically. What is the new angular velocity (in rad/s) and new angular frequency (in rev/s)?
A rotating disk is initially spinning at w= 2.7 rev/s, slows down and stops in 19.4 s. What is the magnitude of the disk's average angular acceleration? (in rev/s^2) 0.28 .a O 26.19 .b O 0.14.c O 0.14-.d O
2. A safety device brings the blade of a power mower from an initial angular speed of wi to rest in 1.00 revolution. At the same constant acceleration, how many revolutions would it take the blade to come to rest from an initial angular speed that was three times as great, V3 = 3v1?
Rev/min 400 300 200 100 0 0 1 2 3 4 5 Time (s) T T 6 7 8 The angular velocity versus time for a fan on a hovercraft is shown above. Determine the number of revolutions in the first 7.38 seconds.
SS fe 1. A Ferris wheel with a diameter of 36.0 m starts from rest and achieves it maximum operational tangential speed of 2.70 m/s in a time of 22.0 s. What is the magnitude of the wheel's angular acceleration? rad/s² 60 ssf6
A motorsports driver is driving his car at a constant speed of 37.0 m/s on a circular track with a radius of 260 m. What is the angular speed (in rad/s) of the car? What are the magnitude (in m/s2) and direction of the car's acceleration?
A large disk with a 2.4 m radius rotates from rest with a constant angular acceleration of 0.30 rad/s2. What are the linear speed and the magnitude of the acceleration of a point on the rim 2.5 s after it started rotating?
At a time of 13D0 seconds the tires of a moving motorcycle are rotating with an unknown initial angular velocity, at that instant each tire starts accelerating with an angular acceleration of 3.00 rev/s2 for 5.00 seconds. Each tire turns through 50.0 revolutions in those 5.00 seconds. Assume the motorcycles tires have a radius of 36.0 cm and that the tires rotate without slipping relative to the road surface. How fast is the motorcycle traveling at t=5.0s?
A merry-go-round rotates from rest with an angular acceleration of 1.88 rad/s?. How long does it take to rotate through (a) the first 3.24 rev and (b) the next 3.24 rev? (a) Number i Units (b) Number i Units
The turntable of the record player has an angular velocity of 625.5 rev/min when it is turned off. It comes to rest 5.3 s after being turned off. What is the angular acceleration of the turntable in rad/s2 (use 3 significant figures).