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Why is a liquid (the hydraulic fluid) us...

Why is a liquid (the hydraulic fluid) used to operate the brakes in a car ?

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The correct Answer is:
The particles in a liquid (the brake oil) can move freely without being compressed much and hence transmit the pressure applied on brake pedal to the brake drum (on moving wheel) efficiently
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LAKHMIR SINGH & MANJIT KAUR-MATTER IN OUR SURROUNDINGS -NCERT
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