PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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If the center of the wheel is moving to the LEFT at 10 ft/s and the wheel has a diameter of 10ft, what is the velocity of point A as a Cartesian vector.
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The cart has a velocity of 4 ft∕sec to the right. Find the magnitude of velocity on point "B" on the wheel in ft/sec if the angular speed is zero.
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- = The quarter-circular link AB with small rollers at two ends has a radius of 0.8 m (that is, it is part of a circle of radius 0.8 m). At the instant shown, roller A has a speed va 2 m/s to the right and roller B moves along the incline of angle 0 = 70° with the horizontal. Calculate the angular velocity of the link and the speed of point B on the link for this instant. (w = 1.83 rad/s CCW, vB m/s) = 1.56 B 45° VA Ꮎ Aarrow_forwardDraw FBD and determine the number of revolutions done by Disk E at thesame time.arrow_forward2. The square plate is constrained with the slots at A and B. At the instant when 0= 30°, point B is moving at 5 m/s down. At this 0.3 m instant, tell me the angular velocity of the plate. What is the velocity of point D? What is the velocity of point C? 03 m 0= 30arrow_forward
- End A of the 3.6-ft link has a velocity of 3.7 ft sec in the direction shown. At the same instant, end B has a velocity whose magnitude is 4.4 ft/sec as indicated. Find the angular velocity w of the link in two ways. The angular velocity of the link is positive if counterclockwise, negative if clockwise. A VA = 3.7 ft/sec 40° Answer: w= 3.6' B B VB = 4.4 ft/sec rad/secarrow_forwardThe center O of the disk has the velocity and acceleration shown in the figure. If the disk rolls without slipping on the horizontal surface, determine the velocity of A and the acceleration of B for the instant represented. Assume a = 4.8 m/s², v = 3.2 m/s, b = 0.7 m, 0 = 43⁰. a A B V y | | L xarrow_forwardPlease solve this using scalar analysis by getting the scalar components at the x and y direction and not by using i-j-karrow_forward
- Dynamicsarrow_forward1. The car has a speed of 55 ft/s. Determine the angular velocity 0' of the radial line OA at this instant. r- 400 ftarrow_forwardThe disks roll on the plane surface without slippage. The left disk rotates at 2 rad/s in the clockwise direction. Determine the angular velocity of the bar. Enter an answer in radians per second up to the second decimal place. Note that the counterclockwise direction is the positive rotation. 2 rad/s 3 ft 1 ft 1 ftarrow_forward
- B8arrow_forwardDetermine the angular velocity of the gear and the velocity of its center O at the instant shown. 4 ft/s 1.50 ft canizer 3 ft/sarrow_forwardThe right-angle bar rotates clockwise with an angular velocity which is decreasing at the rate of 4 rad/s2. Write the vector expressions for the velocity and acceleration of point A when w = 2 rad/s.arrow_forward
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