Question

An auto traveling along a straight road increases it's speed from 30 m/s to 50 m/s in a distance of 180 m.Find Acceleration​

Answer 1

Answer:

u=30m/s

v=50m/s

s=180m

a=constant(given)

By third equation of motion,    v  2  =u  2  +2as

(50)  2  =(30)  2  +2a(180)

a=   40/3  m/s  sq

By first equation of motion,    v=u+at

50=30+(  40​/9 )t

t=  9/2   =4.5sec

Explanation:

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