1) Box of mass (m) is raised upwards
from ditch of width(d) by two
persons who exert equal forces in
horizontal forces on 2 ropes attached
with the box and passing over two
pullies on the 2 edges of ditch
a) Prove that the persons shall have to apply
greater face as the box is raised
up
b) Find that magnitude of force exerted by each person
when box is at debth(d)
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Answer:
) Box of mass (m) is raised upwards
from ditch of width(d) by two
persons who exert equal forces in
horizontal forces on 2 ropes attached
with the box and passing over two
pullies on the 2 edges of ditch
a) Prove that the persons shall have to apply
greater face as the box is raised
up
b) Find that magnitude of force exerted by each person
when box is at debth(d)
Explanation:
) Box of mass (m) is raised upwards
from ditch of width(d) by two
persons who exert equal forces in
horizontal forces on 2 ropes attached
with the box and passing over two
pullies on the 2 edges of ditch
a) Prove that the persons shall have to apply
greater face as the box is raised
up
b) Find that magnitude of force exerted by each person
when box is at debth(d)
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