Solve the question 5:41 PMG30°200 lbExpert Help'ACEikKTO#199610:23350 lbThe two blocks shown are originally at rest. Neglecting the masses of the pulleys and the effectof friction in the pulleys and between block A and the incline, determine (a) the accelerationof each block, (b) the tension in the cable.30°200 lbB350 lbThe two blocks shown are originally at rest. Neglecting the masses of the pulleys and the effectof friction in the pulleys and between block A and the incline, determine (a) the accelerationof each block, (b) the tension in the cable.STEP BY STEP SOLUTIONAnalyzeBlock A (200 lb) rests on a 30° incline.Block B (350 lb) hangs vertically.The task is to determine:The acceleration of each block.The tension in the cable.AnalyzeFBD is shown below.

Step 1: Step 2: Step 3: Step 4:

Answered: 5:41 PM G 30° 200 lb Expert Help 'AC…

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

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Figure 2 G 0.75 m A B 2 m 1.5 m Figure 2 shows a 2000 kg lorry with a center of mass at G. Starting from rest, the lorry achieves a speed of 15 m/s under a constant acceleration after it has traveled 100 m. The front wheels are free to roll. Q5. What are the assumptions that can be made in this problem? (A) Traction force is due to the rear wheels only (B) The wheels have negligible mass (C) There is no change in gravitational force (D) All of the above Q6. What is the acceleration of the lorry (m/s²) (→)? (A) 0.675 (B) 0.908 (C) 1.125 (D) 1.850 Q7. What is the traction force on the wheels at A? () (A) FA= 1850 N (B) FA=2250 N (C) FA=2850 N (D) FA=3150 N
Khufra works at a spring factory and he was assigned to test a certain spring, whose constant is 50 N/m attached to a 50-kg block in an incline (©=30°). With the spring initially at equilibrium position, the block was pushed 0.3 meters up the incline by a 50-N external force applied parallel to the path. The coefficient of kinetic friction is 0.30. d) How much work is done by the block (in Joules) on the spring? e) How much work is done by the applied push on the block? f) How much work is done by friction?
A 75-kg block is attached to a cable. The cable is then attached to a rotating assembly with a mass moment of inertia of 18 kg-m^2. The bearing friction applied at the rotating assembly equivalent to a couple of 45 N-m CCW. The block's downward speed is initially at 2 m/s. 0.3 m 75 kg m 1. Which of the following does positive work on the system? 2. Which of the following is closest to the work done by the bearing friction after the rotating assembly has rotated 1.5 radians CW? 3. Which of the following is closest to the work done by the weight of the 75-kg block after the rotating assembly has rotated 1.5 radians CW? 4. Which of the following is closest to the total work done by the system after the rotating assembly has rotated 1.5 radians CW? 5. Which is following is closest to the speed of the 75-kg block after the rotating assembly rotated 1.5 rad CW?
FRICTIONLESS Find the downward acceleration of m1 if it has a mass of 27.8 kg.
T my F Two blocks connected by a rope of negligible mass are being dragged by a horizontal force F. Suppose that F=68.0 N, mị = 12.0kg, m2 = 18.0kg, and %3D the coefficient of kinetic friction between each block and the surface is 0.1. (a) Draw a free-body diagram for each block. (b) Find the acceleration of the system. (C) Determine the tension T of the rope between the blocks.
A box of mass 20 kg moves up a rough plane which is inclined to the horizontal at 25.0o .It is pulled by a horizontal force F of magnitude 250N . The Coefficient of kinetic friction between thr box and the plane is 0.300 a) if the box travels 3.80 m along the plane determine i. The work done on the box by the force F ii. The work done on the box by gravitational force iii. The work done on the box by reaction force and the work done on the box by frictional force v. total work done on the box b) If the speed of box is zero at bottom plane ,calculate it speed when it travellef 3.80 m (given g=9.81m/s2)
Asnwer: P = 673.279 N
A block of 50 kg is attached to a cable. The cable is then attached to a rotating assembly with a mass moment of inertia of 10 kg-m^2. The bearing friction applied at the rotating assembly is equivalent to a couple of 50 N-m CCW. The block's initial downward speed is 1 m/s. 0.5 m 50 kg 2. Which of the following is closest to the work done by the bearing friction after the rotating assembly has rotated 0.8 radians CW? 40.0 J -40.0 J -25.0 J 25.0 J the following is closest to the work done by the weight of the 50-kg block after assembly has rotated 0.8 radians CW? 4. Which of the following is closest to the total work done by the system after the rotating assembly has rotated 0.8 rad CW?
A light spring with force constant 3.80 N/m is compressed by 7.60 cm as it is held between a 0.300-kg block on the left and a 0.600-kg block on the right, both resting on a horizontal surface. The spring exerts a force on each block, tending to push the blocks apart. The blocks are simultaneously released from rest. Find the acceleration with which each block starts to move, given that the coefficient of kinetic friction between each block and the surface is 0, 0.072, and 0.434. (Let the coordinate system be positive to the right and negative to the left. Indicate the direction with the sign of your answer. Assume that the coefficient of static friction is the same as the coefficient of kinetic friction. If the block does not move, enter 0.)
4
by Dynamics
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