3 in. 15 in. 18 in. Load

A simple friction drive consists of two disks A and B. Initially, disk B has a clockwise angular velocity of 590 rpm, and disk A is at rest. Disk B is known to stop in 69 seconds, decelerating constantly. However, instead of waiting for both disks to be at rest before bringing them into contact, disk A is given a constant angular acceleration of 3.5 rad/s2 counterclockwise. a) Determine the time, in seconds, in which both disks can be brought into contact without slipping. A 2.5 in. Fuente: Beer, 11th Ed. B 3 in. b) Determine the angular velocity of disk A, in rpm, when contact is made without slipping. c) Determine the angular velocity of disk B, in rpm, when contact is made without slipping.

Problem (4) When the power to an electric motor is turned on the motor reaches its rated speed of 2400 rpm in 4 s, and when the power is turned off the motor coasts to rest in 40 s. Assuming uniformly accelerated motion, determine the number of revolutions that the motor executes: (a) in reaching its rated speed, (b) in coasting to rest.

H.W 1 A belt drive system shown, is used as a speed reducer. The input shaft rotates at 2000 rpm and has a 144-taoth sprocket with a pitch diameter of 360 mm. The output shaft has a 72-tooth sprocket with a pitch diameter of 90 mm. The center distance between the two shafts is 750 mm. Determine the following for the belt drive: a. The velocity ratio b. The angular velocity of the output shaft c. The linear belt speed d. The belt wrap on the input and output sprockets e. The belt perimeter length f. Optional: Draw the schematic of the beit drive system using CAD g. Coefficient of friction between the belt and the pulley

A uniform slender rod AB A uniform slender rod A of the rod is struck by a hammer that delivers an impulse that is perpendicular to the rod. In the subsequent motion, determine the distance b through which the rod will move each time it completes a full revolution.

15.4 The gear A of the system shown executes 200 rev over a time interval at Delta t while its angular velocity is being increased from 300 rpm counterclockwise to 900 rpm counterclockwise at a constant rate a. Determine a and Delta t.

please make sure answer matches with the provided options(it's not 6.73) and show work, thank you!!

Question No. 18: (a) In an epicyclic gear train, an arm carries two gears A and B having 36 and 45 teeth respectively. If the arm rotates at 150 r.p.m in the anticlockwise direction about the centre of the gear A which is fixed, determine the speed of gear B. If the gear A instead of being fixed, makes 300 r.p.m in the clockwise direction, what will be the speed of gear B? (b) Prove that the resultant unbalanced force is minimum when half of the reciprocating masses are balanced by rotating masses.

NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A simple friction drive consists of two disks A and B. Initially, disk B has a clockwise angular velocity of 550 rpm, and disk A is at rest. It is known that disk B will coast to rest in 65 s. However, rather than waiting until both disks are at rest to bring them together, disk A is given a constant angular acceleration of 3 rad/s² counterclockwise. A 2.5 in. B 3 in. Determine at what time the disks can be brought together if they are not to slip. (You must provide an answer before moving to the next part.) The disks can be brought together at t= S.

please explain the step i marked in details, SHOW YOUR WORK!!!!!