True or false? A gear rolls without slipping on a straight rack that is positioned horizontally. The instantaneous center of zero velocity coincides with the instantaneous center of zero accelaration.(a) false(b) trueFor the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).ParagranhArial19ptAIs

During pure rolling motion , velocity of point of contact is zero .

Answered: tioned horizontally. The =).

Science

Physics

tioned horizontally. The =).

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Motion In Two Dimensions

Section: Chapter Questions

Problem 30P: A point on a rotating turntable 20.0 cm from the center accelerates from rest to a final speed of...

See similar textbooks

Similar questions

The center O of the wheel is mounted on the sliding block, which has an acceleration ao = 7.1 m/s² to the right. At the instant when 0 = 39°, 0 = 3.3 rad/s and 0 = -6.7 rad/s². For this instant determine the magnitudes of the accelerations of points A and B. 8 Answers: aA = ав A i i 340. mm B ao m/s² m/s²
The hoop is cast on the rough surface such that it has an angular velocity w =5 rad/s and an angular acceleration a = 4 rad/s. Also, its center has a velocity of vo = 5 m/s and a deceleration ao = 2 m/s. Determine the magnitude of the acceleration of point B and its direction angle measured CCW from thez positive axis. do 45 0.3 m Select one OA ap - 5.04 m/s, and 0 170.31 OB.ap 6.86 mist ande 160.12 OCap 7.81 mist and e 162.62 OD.ap 9.29 m/s and 0 151.34
In the kinematic diagram, the limb dimensions are given below, in the arm slide mechanism, the actuating limb angular position is (theta)θ12 = 600 and the speed of the mechanism is given as (thetadot)θ'12 = 50 rad / s . Do the following operations respectively. Find S'13, θ'14 by analyzing velocity.
A drill bit is able to reach 2000 rpm in 0.50 s. Assuming a constant angular acceleration, how many revolutions does this bit make as it ramps up to 2000 rpm? ANS = 8.3 rev.
A wheel of 1.00 m radius turns as 253 rpm. Recall evolution = 2pi radius, and 1minute = 60.0 seconds. Find the angular velocity in rad / s?
The angular acceleration ?, rad/s2 of arotating disk is related to its angular velocity?, rad/s by ? = 4 √?. When t = 0, the disk isat rest and the angular position coordinateof a line in the disk is θ = 8rad. Find theexpression for θ(?).
An airplane propeller is rotating at 1900 rpm 1rev/min2. (a)Computethe propeller’s angular velocity in rad/s. (b) How many secondsdoes it take for the propeller to turn through 35°?
A coffee grinder accelerates from rest to 300 revolutions per minute in 0.800 s. Then keep speed constant angular for 2.20 s. How many rotations did the mill after 3.00 s?
The blades in a blender rotate at a rate of 6200 rpmrpm . When the motor is turned off during operation, the blades slow to rest in 2.6 s. What is the angular acceleration as the blades slow down?
For the system given in the figure, the radius of the gear isgiven as 15cm and it rolls on the horizontal rack. The pin Gat the center of the gear is located inside a slot arm AB,which rotates at a constant angular velocity of ? = 5 rad/sin clockwise direction. Determine the angular accelerationof the gear and the total acceleration of the pin G when ? =50°.
Disk B is at rest when it is brought into contact with disk A which is rotating freely at 450 rpm clockwise. After 6 s of slippage, during which each disk has a constant angular acceleration, disk A reaches a final angular velocity of 140 rpm clockwise. Determine the angu- lar acceleration of each disk during the period of slippage. A 3 in. B 5 in.
1. Express the following in terms of the three angular measures; а. 28° b. 0.25rev/s c. 2.18rad/s? 2. The wheel 3ft radius rolls freely to the right. At the given position, ó = 3rad per sec. and a = 5rad per sec. sq., both clockwise. Compute the velocity and acceleration of the point point B which is 2ft from the center A of the wheel 3. A proton has a speed 5x10°m/s and is moving in a circle in the xy plane of a radius r = 0.175m.what is its position in the xy plane at time t= 2.0x10"s? at t= 0, the position of the proton is 0.175mî and its circles counter clockwise.sketch the trajectory.