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Vectors and Its Types

16.To paint t...

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16.To paint the side of a building a painter normally hosts himself up by pulling on the rope A as shown in figute.The paintercand tge platform together weigh 200N. The eope B can withstand 300N.find a)maximum acceleration of painter b)tension in rope A when painter is at rest

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Q. To paint the side of a building, paainter normally hoists himself up by pulling on the rope

A

as in figure. The painter and plateform together weigh

200 N

B

300 N

. Then (i)The maximum acceleration that painter can have upwards is
5m/s

^{2}

(ii)To hoist himself up , rope B must withstand minimum 400 N force .

Q. A painter of mass

M

stands on a platform of mass

m

and pulls himself up by two ropes which hang over the pulley as shown. He pulls each rope with the force

F

and moves upward with the uniform acceleration

a

a

Q. A painter of mass

M

stand on a platform of mass

m

and pulls himself up by two ropes which hang over pulley as shown. He pulls each rope with the force

F

and moves upward with uniform acceleration

a

a

neglecting the fact that no one could do this for long time.

Q. A painter of mass

100 kg

is raising himself and the crate (such an arrangement is called Bosun's chair) on which he stands as shown. When he pulls the rope the force exerted by him on the crate's floor is

450 N

. If the crate weighs

25 kg

then, find the acceleration of the system and the tension in the rope.

60 k g

man stands on a

15 k g

platform. A rope attached to the platform and passing over an overhead pulley allows the man to raise himself along with the platform. To get started, he pulls the rope down with a force of

400 N

. Find the acceleration of the platform as well as that of the painter.

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