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JEE Main202226 Jun 2022Evening ShiftPhysicsLaws of MotionActual

A system to 10 balls each of mass 2   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 7 th   and 8 th   ball is _____ N when 6 th   ball just leaves the table.

Correct answer

0

Step-by-step solution

Acceleration, a = Net   pulling   force Total   mass a = 6 m g 10 m = 6 g 10 = 6   m   s - 2 Considering ball 8 , 9   &   10 as system, tension between ball 7 & 8 can be written as, T 7 , 8 = 3 m × a = 3 × 2 × 6 = 36   N

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