Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • A system to 10 balls each of mass are connected via massless and

A system to 10 balls each of mass \mathrm{2 \mathrm{~kg}} are connected via massless and unstretchable string. The system is allowed to slip over the edge of a smooth table as shown in figure. Tension on the string between the \mathrm{7^{\text {th }}} and \mathrm{8^{\text {th }} }ball is ______N when \mathrm{6^{\text {th }} } ball just leaves the table.

Option: 1

36


Option: 2

-


Option: 3

-


Option: 4

-


Answers (1)


Net downward force \mathrm{= 6\, mg}
                                  \mathrm{= 120\, N}  

\mathrm{a= \frac{\text{Total force applied}}{\text{Total mass}}}
     \mathrm{= \frac{120}{\left ( 10\times 2 \right )}= 6 m/s^{2}}



On 10th ball
\mathrm{T_{2}= ma= 12\, N}

On 9th  ball
\mathrm{T_{1}-T_{2}= ma}
\mathrm{T_{1}= 24\, N}

On 8th  ball
\mathrm{T-T_{1}= ma}
\mathrm{T= 36\, N}

Tension on the string between the 7th & 8th ball is 36 N.

Posted by

Sumit Saini

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2025: BTech CSE cut-offs for PwD candidates at NITs make entry easy; top institutes still selective
anam-khan

73 or 99 percentile? JEE Main result questioned, J-K candidate says, ‘Don’t create hype’
anam-khan

JEE Main 2025: 11 from Kota coaching centres among 24 students with 100 percentile

Latest Question