If all the pulleys are massless and string is ideal, find the reading of spring balance
If all the pulleys are massless and string is ideal, find the reading of spring balance
- A
$\frac{{10}}{{13}}\,kg$
- B
$\frac{{10}}{{7}}\,kg$
- C
$\frac{{20}}{{13}}\,kg$
- D
$\frac{{20}}{{7}}\,kg$
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