Q.

The braking efficiency for a vehicle moving with a speed of 18kmph, having a lag distance of 14m and coefficient of longitudinal friction is 0.36.

A. 25.28%
B. 25.4%
C. 25.6%
D. 25.8%
Answer» A. 25.28%
Explanation: braking efficiency=100*f’/f
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Discussion

Mahira Ali
4 months ago

f’=v2/2gL f’=5*5/2*9.81*14 f’=0.09
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