﻿ Two identical small 🚩 balls of equal charge q & equal mass m = 0.9 kg are placed at a separation of r= 1 minair on a rough
, 20.08.2019 00:00, Firdaus17f

# Two identical small balls of equal charge q & equal mass m = 0.9 kg are placed at a separation of r= 1 minair on a rough surface. if coefficient of static friction is u.= 0.9. find the magnitude of maximum charge q suchthat both balls remain at rest.(1) + 30 uc(2) 90 uc(3) + 60 uc(4) +20 uc​

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