Student B60 kgStudent A70 kg A rope of negligible mass passes over a pulley of negligible mass attached to the ceiling, as shown above. Oneend of the rope is held by Študent A of mass 70 kg, who is at rest on the floor. The opposite end of the rope isheld by Student B of mass 60 kg, who is suspended at rest above the floor.(a) On the dots below that represent the students, draw and label free-body diagrams showing the forces onStudent A and on Student B.• BA(b) Calculate the magnitude of the force exerted by the floor on Student A.Student B now climbs up the rope at a constant acceleration of 0.25 m/s’ with respect to the floor.(c) Calculate the tension in the rope while Student B is accelerating.(d) As Student B is accelerating, is Student A pulled upward off the floor? Justify your answer.(e) With what minimum acceleration must Student B climb up the rope to lift Student A upward off the floor?

A rope of negligible mass passes over a pulley of negligible mass attached to the ceiling, as shown above. One end of the rope is held by Študent A of mass 70 kg, who is at rest on the floor. The opposite end of the rope is held by Student B of mass 60 kg, who is suspended at rest above the floor. (a) On the dots below that represent the students, draw and label free-body diagrams showing the forces on Student A and on Student B. • B (b) Calculate the magnitude of the force exerted by the floor on Student A. Student B now climbs up the rope at a constant acceleration of 0.25 m/s° with respect to the floor. (c) Calculate the tension in the rope while Student B is accelerating. (d) As Student B is accelerating, is Student A pulled upward off the floor? Justify your answer. (e) With what minimum acceleration must Student B climb up the rope to lift Student A upward off the floor?

A rope of negligible mass passes over a pulley of negligible mass attached to the ceiling, as shown above. One end of the rope is held by Študent A of mass 70 kg, who is at rest on the floor. The opposite end of the rope is held by Student B of mass 60 kg, who is suspended at rest above the floor. (a) On the dots below that represent the students, draw and label free-body diagrams showing the forces on Student A and on Student B. • B (b) Calculate the magnitude of the force exerted by the floor on Student A. Student B now climbs up the rope at a constant acceleration of 0.25 m/s° with respect to the floor. (c) Calculate the tension in the rope while Student B is accelerating. (d) As Student B is accelerating, is Student A pulled upward off the floor? Justify your answer. (e) With what minimum acceleration must Student B climb up the rope to lift Student A upward off the floor?

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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Question

A rope of negligible mass passes over a pulley of negligible mass attached to the ceiling, as shown above. One
end of the rope is held by Študent A of mass 70 kg, who is at rest on the floor. The opposite end of the rope is
held by Student B of mass 60 kg, who is suspended at rest above the floor.
(a) On the dots below that represent the students, draw and label free-body diagrams showing the forces on
Student A and on Student B.
• B
A
(b) Calculate the magnitude of the force exerted by the floor on Student A.
Student B now climbs up the rope at a constant acceleration of 0.25 m/s’ with respect to the floor.
(c) Calculate the tension in the rope while Student B is accelerating.
(d) As Student B is accelerating, is Student A pulled upward off the floor? Justify your answer.
(e) With what minimum acceleration must Student B climb up the rope to lift Student A upward off the floor?

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A former student of mechanics wishes to weigh himself t has access only to a scale A with capacity limited to 110 lbs and a small 20- lb spring dynamometer B. With the rig shown he discovers that when he exerts a pull on the rope so that Bregisters 18 lb, the scale A reads 84 lb. What is his correct weight? Answer: Weight= lb
Question 1 Member ABC of negligible weight is supported by a pin and bracket at B and by an inextensible cord attached at A and C and passing over a frictionless pulley at D. For the loading shown and neglecting the size of the pulley, calculate the tension in the cord ,the horizontal and vertical reactions at point B. (X,XX,XXX represents the last digits number of your IC). 1 257mm 75 N 167mm B 127 mm
The uniform rod BC weighs 32.2 lb. The rod is connected to the frame D by a frictionless pin C and a cord AB as shown. Calculate the maximum value of the applied force P for which rod BC will not “rise up”.
HELP!!!! Be sure answer all and Clearly written. Directions: Free Body Diagrams (FBD) must be included for equilibrium problems