5- The rotation of the 0.9m arm OA is defined by the relation 0 = 0.20t2 where 0 in radians and t in seconds. Collar B slides along the arm in such a way that its distance from O is (r = 0.5-0.12 tt). where r in meters and t in seconds. After the arm OA has rotated 45: Determine the velocity, and acceleration of the collar. (A) v= 0.476 m/s , a= 0.785 m/s (B) v= 0.229 m/s, a= 0.587 m/s? (C) v= 0.331 m/s, a= 0.788 m/s? (D) v= 0.314 m/s , a= 0.218 m/s?

5- The rotation of the 0.9m arm OA is defined by the relation 0 = 0.20t2 where 0 in radians and t in seconds. Collar B slides along the arm in such a way that its distance from O is (r = 0.5-0.12 tt). where r in meters and t in seconds. After the arm OA has rotated 45: Determine the velocity, and acceleration of the collar. (A) v= 0.476 m/s , a= 0.785 m/s (B) v= 0.229 m/s, a= 0.587 m/s? (C) v= 0.331 m/s, a= 0.788 m/s? (D) v= 0.314 m/s , a= 0.218 m/s?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

The angular displacement of the centrifuge is given by θ = 3.2[t + 37e-0.027t - 37] rad, where t is in seconds and t = 0 is the startup time. If the person loses consciousness at an acceleration level of 7.7g, determine the time t at which this would occur. Verify that the tangential acceleration is negligible as the normal acceleration approaches 7.7g.
If the roller coaster starts from rest at A and its speed increases at at = (6 − 0.06s) m/s2,determine the magnitude of its acceleration when it reaches B where sB = 40 m. TOPIC: Curvilinear Motion. Normal and Tangential Components
The slotted arm OA forces the small pin to move in the fixed spiral guide defined by r = Kθ where θ is measured in radians and the constant K = 3.6 m. Arm OA starts from rest at θ = 39° and has a constant counterclockwise angular acceleration θ¨ = 1.2 rad/s2. Determine the magnitude of the acceleration of the pin P when θ = 144°.
A ball of radius 10mm can move along the frictionless slider of length L=141mm. It’s motion is affected by the device on surface B since it is experiencing attraction to that surface. At t=0, it is positioned at point A. Starting at rest, determine its velocity (m/s) as it comes in contact with surface B, if the ball’s acceleration is defined by a=c/(L-x)2 where c=50.4 m3/s
At any instant, the horizontalposition of the balloon isdefined by x = 12 ft, where t isin seconds. Determine theMAGNITUDE and DIRECTION of thevelocity and acceleration when t =2s and if the equation of thepath is y = x2/10.
A block weighing 100N is being pulled along the horizontal plane by a force P having the slope of 5 vertical to 12 horizontal. Determine the value of P to give the block an acceleration of 2.5m/s2 starting from rest. fk = 0.25.
Telemetry technology is used to quantify kinematic values of a 200-kg roller-coaster cart as it passes overhead. According to the system, r= 25 m, 0=-0.32 rad/s2. At this instant, determine (a) the normal force between the cart and the track, (b) the radius of curvature of the track.
The roller coaster car travels down the helical path at constant speed such that the parametric equiations that define its position are x = c sin kt , y = c cos kt, z= h - bt, where c, h and b are constants. Determine the magnitudes of its velocity and acceleration.
The elevator starts from rest and moves upward with a constant acceleration. If the average counterweight W moves through 30.7 ft in 6.2s, determine the magnitude of the acceleration (ft/s2) of the cable C. Round off only on final answer expressed in 3 decimal places. Note: Istead of units, indicate the direction of cable C : use U if upwards or D if downwards.
The bucket is hoisted by the rope that wraps around a drum wheel. Ifthe angular displacement of the wheel is θ= (0.5t3 + 15t) rad, where tis in seconds, determine the velocity and acceleration of the bucketwhen t = 3s.
A 6kg block is at rest when an upward force parallel to the 15° surface is applied. If uk =0.18, and ,us= 0.23, a. Determine the acceleration if P=180N. b. Determine the acceleration if P=320N.
The rod OA rotates in the horizontal plane such that 0.6t3 radian, and collar B is sliding outward along OA so that r=101t2 mm. If in both cases t is in seconds, determine the radial acceleration (mm/s2) of the collar when the collar is 122 mm from O. Round off only on the final answer expressed in 3 decimal places. DONT ROUND OF IN THE ENTIRE SOLUTION, ONLY IN THE FINAL ANSWER