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To move a safe, two cylindrical steel bars 7 cms in
diameter are used as rollers. How far will the safe move
forward when the rollers have made one revolution?
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Answer / anagha
diameter = 7cms
radius = 7/2 cms
circumference = 2*22/7*r
= 2*22/7*7/2
= 22 cms is the distance moved.
| Is This Answer Correct ? | 15 Yes | 2 No |
Answer / googydeath
It moves a distance of 2*3.14*r which is 21.98
| Is This Answer Correct ? | 4 Yes | 4 No |
Answer / sanjay vaij
44cm
Rollar movement 22cm+safe movement over roller 22cm
| Is This Answer Correct ? | 2 Yes | 5 No |
Answer / santosh sawant
its 29cms,
first roller moves 22cms as (22/7)*7=22
but 2nd roller is ahead of 1st, if they are touching with
each oter distance between thrir centres is 7cm ie.
2nd roller moves 7cm ahead hence distance travelled by them
is 22+7=29cm
| Is This Answer Correct ? | 1 Yes | 4 No |
Answer / sowmiya
diameter=7cms
radius=7/2cms
circumference=2*22/7&*r
=2*22/7*7/2
=22cms
here we have 2 cylindrical steel bars
so we hav twice of 22,i.e,44cms....
| Is This Answer Correct ? | 1 Yes | 6 No |
Answer / krishnaveni
the distance it moves is=2*pi*7cms
=14*3.1414
=43.9796
| Is This Answer Correct ? | 2 Yes | 10 No |
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