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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?

Answers were Sorted based on User's Feedback

To move a safe, two cylindrical steel bars 7 cms in diameter are used as rollers. How far will the..

diameter = 7cms
circumference = 2*22/7*r
= 2*22/7*7/2
= 22 cms is the distance moved.

 Is This Answer Correct ? 15 Yes 2 No

To move a safe, two cylindrical steel bars 7 cms in diameter are used as rollers. How far will the..

21.98 cms

 Is This Answer Correct ? 6 Yes 4 No

To move a safe, two cylindrical steel bars 7 cms in diameter are used as rollers. How far will the..

It moves a distance of 2*3.14*r which is 21.98

 Is This Answer Correct ? 4 Yes 4 No

To move a safe, two cylindrical steel bars 7 cms in diameter are used as rollers. How far will the..

44cm
Rollar movement 22cm+safe movement over roller 22cm

 Is This Answer Correct ? 2 Yes 5 No

To move a safe, two cylindrical steel bars 7 cms in diameter are used as rollers. How far will the..

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

To move a safe, two cylindrical steel bars 7 cms in diameter are used as rollers. How far will the..

diameter=7cms
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

To move a safe, two cylindrical steel bars 7 cms in diameter are used as rollers. How far will the..

does it really move???

 Is This Answer Correct ? 1 Yes 7 No

To move a safe, two cylindrical steel bars 7 cms in diameter are used as rollers. How far will the..

the distance it moves is=2*pi*7cms
=14*3.1414
=43.9796

 Is This Answer Correct ? 2 Yes 10 No

To move a safe, two cylindrical steel bars 7 cms in diameter are used as rollers. How far will the..

14cm

 Is This Answer Correct ? 0 Yes 11 No

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